Climate Change in Palo Alto, California

96+ years of recorded temperature data show Palo Alto is warming.

Based on our analysis of 96 years of temperature data near Palo Alto, CA, this area shows a warming trend of approximately +0.3°F per decade. 10 of the last 10 years recorded above-average temperatures, and 2014 was the warmest year on record at +3.4°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.3°F

per decade

Warmest Year

2014

+3.4°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+2.6°F

2020s vs 1930s

Compared to the National Average

Palo Alto is warming 0.1°F/decade faster than the national average.

National: +0.20°F/decade
Palo Alto: +0.32°F/decade

Climate Spiral

Each ring represents one year of monthly temperatures. Blue indicates cooler-than-average periods; red indicates warmer. The outward drift over time reveals Palo Alto's long-term warming trend.

Temperature anomaly spiral for Palo Alto, California
Climate spiral: monthly temperature anomalies from 96+ years of NOAA records for Palo Alto, CA.

Warming Stripes

Each vertical stripe represents one year. The color gradient from blue to red shows how annual temperatures have shifted relative to the historical average.

Warming stripes for Palo Alto, California
Warming stripes: each stripe is one year of average temperature anomaly for Palo Alto, CA.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.32°F per decade quantifies the rate of change.

Temperature trend chart for Palo Alto, California
Linear trend: annual temperature anomalies with trend line for Palo Alto, CA.

Temperature by Decade

1930s
-0.76°F
1940s
-0.89°F
1950s
-0.62°F
1960s
-0.66°F
1970s
-0.34°F
1980s
+0.41°F
1990s
+0.75°F
2000s
+0.82°F
2010s
+1.57°F
2020s
+1.92°F

Average temperature anomaly per decade relative to the historical baseline period.

Anomaly Scale

-3.2°F Colder Normal +3.6°F Warmer

Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout.

Monthly Temperature Records

Complete monthly temperature record for Palo Alto, CA. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
0.5 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan47.6°F49.1°F-1.5°NCLIMGRID
1930Feb54.2°F52.3°F+1.9°NCLIMGRID
1930Mar54.8°F53.7°F+1.1°NCLIMGRID
1930Apr57.6°F55.9°F+1.6°NCLIMGRID
1930May55.3°F59.6°F-4.3°NCLIMGRID
1930Jun61.3°F63.0°F-1.7°NCLIMGRID
1930Jul61.3°F64.8°F-3.5°NCLIMGRID
1930Aug62.3°F64.9°F-2.6°NCLIMGRID
1930Sep60.6°F64.4°F-3.8°NCLIMGRID
1930Oct60.0°F60.7°F-0.7°NCLIMGRID
1930Nov53.7°F54.4°F-0.7°NCLIMGRID
1930Dec48.0°F49.3°F-1.3°NCLIMGRID
1931Jan49.8°F49.1°F+0.7°NCLIMGRID
1931Feb53.6°F52.3°F+1.3°NCLIMGRID
1931Mar54.9°F53.7°F+1.2°NCLIMGRID
1931Apr57.8°F55.9°F+1.9°NCLIMGRID
1931May62.9°F59.6°F+3.3°NCLIMGRID
1931Jun61.7°F63.0°F-1.3°NCLIMGRID
1931Jul66.8°F64.8°F+2.1°NCLIMGRID
1931Aug65.0°F64.9°F+0.1°NCLIMGRID
1931Sep62.4°F64.4°F-2.0°NCLIMGRID
1931Oct57.9°F60.7°F-2.8°NCLIMGRID
1931Nov51.7°F54.4°F-2.8°NCLIMGRID
1931Dec47.6°F49.3°F-1.7°NCLIMGRID
1932Jan47.1°F49.1°F-1.9°NCLIMGRID
1932Feb49.0°F52.3°F-3.3°NCLIMGRID
1932Mar54.5°F53.7°F+0.8°NCLIMGRID
1932Apr54.0°F55.9°F-1.9°NCLIMGRID
1932May58.6°F59.6°F-1.0°NCLIMGRID
1932Jun61.6°F63.0°F-1.4°NCLIMGRID
1932Jul62.7°F64.8°F-2.1°NCLIMGRID
1932Aug63.2°F64.9°F-1.7°NCLIMGRID
1932Sep63.9°F64.4°F-0.5°NCLIMGRID
1932Oct60.0°F60.7°F-0.7°NCLIMGRID
1932Nov57.8°F54.4°F+3.3°NCLIMGRID
1932Dec45.0°F49.3°F-4.3°NCLIMGRID
1933Jan45.1°F49.1°F-4.0°NCLIMGRID
1933Feb47.8°F52.3°F-4.5°NCLIMGRID
1933Mar53.1°F53.7°F-0.6°NCLIMGRID
1933Apr54.3°F55.9°F-1.6°NCLIMGRID
1933May54.5°F59.6°F-5.1°NCLIMGRID
1933Jun58.7°F63.0°F-4.3°NCLIMGRID
1933Jul64.1°F64.8°F-0.7°NCLIMGRID
1933Aug63.6°F64.9°F-1.4°NCLIMGRID
1933Sep61.4°F64.4°F-3.0°NCLIMGRID
1933Oct62.6°F60.7°F+1.9°NCLIMGRID
1933Nov56.5°F54.4°F+2.1°NCLIMGRID
1933Dec49.0°F49.3°F-0.3°NCLIMGRID
1934Jan49.8°F49.1°F+0.7°NCLIMGRID
1934Feb53.5°F52.3°F+1.2°NCLIMGRID
1934Mar58.5°F53.7°F+4.8°NCLIMGRID
1934Apr58.4°F55.9°F+2.5°NCLIMGRID
1934May60.8°F59.6°F+1.3°NCLIMGRID
1934Jun62.0°F63.0°F-1.0°NCLIMGRID
1934Jul63.4°F64.8°F-1.4°NCLIMGRID
1934Aug63.5°F64.9°F-1.4°NCLIMGRID
1934Sep63.4°F64.4°F-1.0°NCLIMGRID
1934Oct59.7°F60.7°F-1.0°NCLIMGRID
1934Nov55.9°F54.4°F+1.4°NCLIMGRID
1934Dec50.4°F49.3°F+1.1°NCLIMGRID
1935Jan48.1°F49.1°F-0.9°NCLIMGRID
1935Feb51.1°F52.3°F-1.3°NCLIMGRID
1935Mar48.9°F53.7°F-4.8°NCLIMGRID
1935Apr55.5°F55.9°F-0.4°NCLIMGRID
1935May58.0°F59.6°F-1.6°NCLIMGRID
1935Jun62.9°F63.0°F-0.1°NCLIMGRID
1935Jul63.0°F64.8°F-1.8°NCLIMGRID
1935Aug63.5°F64.9°F-1.4°NCLIMGRID
1935Sep61.9°F64.4°F-2.5°NCLIMGRID
1935Oct58.0°F60.7°F-2.7°NCLIMGRID
1935Nov51.4°F54.4°F-3.0°NCLIMGRID
1935Dec49.7°F49.3°F+0.4°NCLIMGRID
1936Jan51.4°F49.1°F+2.3°NCLIMGRID
1936Feb51.1°F52.3°F-1.2°NCLIMGRID
1936Mar53.9°F53.7°F+0.2°NCLIMGRID
1936Apr56.7°F55.9°F+0.8°NCLIMGRID
1936May61.2°F59.6°F+1.7°NCLIMGRID
1936Jun62.7°F63.0°F-0.3°NCLIMGRID
1936Jul64.7°F64.8°F+0.0°NCLIMGRID
1936Aug64.6°F64.9°F-0.3°NCLIMGRID
1936Sep64.4°F64.4°F+0.0°NCLIMGRID
1936Oct61.2°F60.7°F+0.5°NCLIMGRID
1936Nov54.0°F54.4°F-0.4°NCLIMGRID
1936Dec48.1°F49.3°F-1.2°NCLIMGRID
1937Jan41.6°F49.1°F-7.4°NCLIMGRID
1937Feb48.7°F52.3°F-3.7°NCLIMGRID
1937Mar53.1°F53.7°F-0.6°NCLIMGRID
1937Apr53.6°F55.9°F-2.3°NCLIMGRID
1937May58.7°F59.6°F-0.8°NCLIMGRID
1937Jun63.0°F63.0°F+0.0°NCLIMGRID
1937Jul64.7°F64.8°F-0.1°NCLIMGRID
1937Aug64.4°F64.9°F-0.5°NCLIMGRID
1937Sep63.2°F64.4°F-1.2°NCLIMGRID
1937Oct61.3°F60.7°F+0.6°NCLIMGRID
1937Nov55.7°F54.4°F+1.3°NCLIMGRID
1937Dec51.0°F49.3°F+1.7°NCLIMGRID
1938Jan49.1°F49.1°F+0.1°NCLIMGRID
1938Feb50.9°F52.3°F-1.4°NCLIMGRID
1938Mar50.6°F53.7°F-3.0°NCLIMGRID
1938Apr54.3°F55.9°F-1.6°NCLIMGRID
1938May58.8°F59.6°F-0.8°NCLIMGRID
1938Jun62.0°F63.0°F-1.0°NCLIMGRID
1938Jul64.5°F64.8°F-0.3°NCLIMGRID
1938Aug63.8°F64.9°F-1.1°NCLIMGRID
1938Sep63.5°F64.4°F-0.9°NCLIMGRID
1938Oct59.2°F60.7°F-1.5°NCLIMGRID
1938Nov52.4°F54.4°F-2.0°NCLIMGRID
1938Dec50.8°F49.3°F+1.5°NCLIMGRID
1939Jan48.3°F49.1°F-0.7°NCLIMGRID
1939Feb48.3°F52.3°F-4.0°NCLIMGRID
1939Mar51.5°F53.7°F-2.2°NCLIMGRID
1939Apr57.3°F55.9°F+1.4°NCLIMGRID
1939May59.4°F59.6°F-0.2°NCLIMGRID
1939Jun61.7°F63.0°F-1.3°NCLIMGRID
1939Jul63.8°F64.8°F-1.0°NCLIMGRID
1939Aug63.7°F64.9°F-1.2°NCLIMGRID
1939Sep66.7°F64.4°F+2.3°NCLIMGRID
1939Oct60.4°F60.7°F-0.3°NCLIMGRID
1939Nov54.9°F54.4°F+0.5°NCLIMGRID
1939Dec52.0°F49.3°F+2.7°NCLIMGRID
1940Jan51.0°F49.1°F+2.0°NCLIMGRID
1940Feb53.4°F52.3°F+1.1°NCLIMGRID
1940Mar55.3°F53.7°F+1.6°NCLIMGRID
1940Apr57.2°F55.9°F+1.3°NCLIMGRID
1940May59.8°F59.6°F+0.2°NCLIMGRID
1940Jun63.7°F63.0°F+0.7°NCLIMGRID
1940Jul64.4°F64.8°F-0.4°NCLIMGRID
1940Aug63.9°F64.9°F-1.0°NCLIMGRID
1940Sep64.0°F64.4°F-0.4°NCLIMGRID
1940Oct60.5°F60.7°F-0.2°NCLIMGRID
1940Nov53.3°F54.4°F-1.1°NCLIMGRID
1940Dec52.4°F49.3°F+3.1°NCLIMGRID
1941Jan51.3°F49.1°F+2.2°NCLIMGRID
1941Feb53.4°F52.3°F+1.1°NCLIMGRID
1941Mar56.0°F53.7°F+2.3°NCLIMGRID
1941Apr54.6°F55.9°F-1.3°NCLIMGRID
1941May61.2°F59.6°F+1.6°NCLIMGRID
1941Jun61.5°F63.0°F-1.5°NCLIMGRID
1941Jul65.3°F64.8°F+0.6°NCLIMGRID
1941Aug63.1°F64.9°F-1.8°NCLIMGRID
1941Sep63.2°F64.4°F-1.2°NCLIMGRID
1941Oct58.4°F60.7°F-2.3°NCLIMGRID
1941Nov55.6°F54.4°F+1.1°NCLIMGRID
1941Dec51.0°F49.3°F+1.7°NCLIMGRID
1942Jan48.9°F49.1°F-0.2°NCLIMGRID
1942Feb50.2°F52.3°F-2.1°NCLIMGRID
1942Mar52.2°F53.7°F-1.5°NCLIMGRID
1942Apr54.5°F55.9°F-1.4°NCLIMGRID
1942May57.4°F59.6°F-2.2°NCLIMGRID
1942Jun61.5°F63.0°F-1.5°NCLIMGRID
1942Jul64.8°F64.8°F+0.0°NCLIMGRID
1942Aug63.6°F64.9°F-1.3°NCLIMGRID
1942Sep61.9°F64.4°F-2.5°NCLIMGRID
1942Oct59.8°F60.7°F-0.9°NCLIMGRID
1942Nov53.4°F54.4°F-1.1°NCLIMGRID
1942Dec49.5°F49.3°F+0.2°NCLIMGRID
1943Jan48.6°F49.1°F-0.5°NCLIMGRID
1943Feb52.3°F52.3°F+0.0°NCLIMGRID
1943Mar54.4°F53.7°F+0.7°NCLIMGRID
1943Apr56.4°F55.9°F+0.4°NCLIMGRID
1943May60.3°F59.6°F+0.8°NCLIMGRID
1943Jun60.4°F63.0°F-2.6°NCLIMGRID
1943Jul63.7°F64.8°F-1.1°NCLIMGRID
1943Aug63.0°F64.9°F-1.9°NCLIMGRID
1943Sep65.1°F64.4°F+0.7°NCLIMGRID
1943Oct59.6°F60.7°F-1.1°NCLIMGRID
1943Nov55.3°F54.4°F+0.8°NCLIMGRID
1943Dec50.5°F49.3°F+1.2°NCLIMGRID
1944Jan49.2°F49.1°F+0.2°NCLIMGRID
1944Feb49.1°F52.3°F-3.2°NCLIMGRID
1944Mar53.3°F53.7°F-0.4°NCLIMGRID
1944Apr52.8°F55.9°F-3.1°NCLIMGRID
1944May58.8°F59.6°F-0.8°NCLIMGRID
1944Jun60.6°F63.0°F-2.4°NCLIMGRID
1944Jul62.6°F64.8°F-2.1°NCLIMGRID
1944Aug63.0°F64.9°F-1.9°NCLIMGRID
1944Sep63.6°F64.4°F-0.8°NCLIMGRID
1944Oct60.8°F60.7°F+0.1°NCLIMGRID
1944Nov52.4°F54.4°F-2.0°NCLIMGRID
1944Dec50.9°F49.3°F+1.6°NCLIMGRID
1945Jan47.0°F49.1°F-2.0°NCLIMGRID
1945Feb51.1°F52.3°F-1.2°NCLIMGRID
1945Mar49.4°F53.7°F-4.3°NCLIMGRID
1945Apr55.0°F55.9°F-1.0°NCLIMGRID
1945May57.3°F59.6°F-2.3°NCLIMGRID
1945Jun63.8°F63.0°F+0.8°NCLIMGRID
1945Jul65.3°F64.8°F+0.6°NCLIMGRID
1945Aug62.8°F64.9°F-2.1°NCLIMGRID
1945Sep64.3°F64.4°F-0.1°NCLIMGRID
1945Oct60.8°F60.7°F+0.1°NCLIMGRID
1945Nov53.8°F54.4°F-0.7°NCLIMGRID
1945Dec50.7°F49.3°F+1.4°NCLIMGRID
1946Jan47.8°F49.1°F-1.2°NCLIMGRID
1946Feb48.1°F52.3°F-4.3°NCLIMGRID
1946Mar51.7°F53.7°F-2.0°NCLIMGRID
1946Apr55.1°F55.9°F-0.8°NCLIMGRID
1946May58.2°F59.6°F-1.3°NCLIMGRID
1946Jun61.3°F63.0°F-1.7°NCLIMGRID
1946Jul64.6°F64.8°F-0.2°NCLIMGRID
1946Aug63.0°F64.9°F-1.9°NCLIMGRID
1946Sep63.8°F64.4°F-0.6°NCLIMGRID
1946Oct58.0°F60.7°F-2.7°NCLIMGRID
1946Nov51.4°F54.4°F-3.1°NCLIMGRID
1946Dec49.1°F49.3°F-0.2°NCLIMGRID
1947Jan44.3°F49.1°F-4.7°NCLIMGRID
1947Feb52.0°F52.3°F-0.3°NCLIMGRID
1947Mar55.0°F53.7°F+1.3°NCLIMGRID
1947Apr58.2°F55.9°F+2.3°NCLIMGRID
1947May60.9°F59.6°F+1.4°NCLIMGRID
1947Jun64.5°F63.0°F+1.6°NCLIMGRID
1947Jul63.1°F64.8°F-1.7°NCLIMGRID
1947Aug64.3°F64.9°F-0.6°NCLIMGRID
1947Sep63.9°F64.4°F-0.5°NCLIMGRID
1947Oct60.4°F60.7°F-0.3°NCLIMGRID
1947Nov50.7°F54.4°F-3.7°NCLIMGRID
1947Dec48.1°F49.3°F-1.2°NCLIMGRID
1948Jan50.8°F49.1°F+1.7°NCLIMGRID
1948Feb48.7°F52.3°F-3.7°NCLIMGRID
1948Mar50.1°F53.7°F-3.6°NCLIMGRID
1948Apr53.5°F55.9°F-2.4°NCLIMGRID
1948May56.3°F59.6°F-3.2°NCLIMGRID
1948Jun61.8°F63.0°F-1.2°NCLIMGRID
1948Jul63.4°F64.8°F-1.4°NCLIMGRID
1948Aug63.7°F64.9°F-1.2°NCLIMGRID
1948Sep61.6°F64.4°F-2.8°NCLIMGRID
1948Oct59.3°F60.7°F-1.4°NCLIMGRID
1948Nov53.2°F54.4°F-1.2°NCLIMGRID
1948Dec45.4°F49.3°F-3.9°NCLIMGRID
1949Jan41.2°F49.1°F-7.9°NCLIMGRID
1949Feb46.8°F52.3°F-5.5°NCLIMGRID
1949Mar52.2°F53.7°F-1.5°NCLIMGRID
1949Apr56.7°F55.9°F+0.8°NCLIMGRID
1949May58.7°F59.6°F-0.9°NCLIMGRID
1949Jun63.0°F63.0°F+0.0°NCLIMGRID
1949Jul62.3°F64.8°F-2.4°NCLIMGRID
1949Aug62.4°F64.9°F-2.5°NCLIMGRID
1949Sep63.9°F64.4°F-0.5°NCLIMGRID
1949Oct57.5°F60.7°F-3.2°NCLIMGRID
1949Nov56.9°F54.4°F+2.5°NCLIMGRID
1949Dec47.2°F49.3°F-2.1°NCLIMGRID
1950Jan45.2°F49.1°F-3.8°NCLIMGRID
1950Feb49.9°F52.3°F-2.4°NCLIMGRID
1950Mar51.6°F53.7°F-2.1°NCLIMGRID
1950Apr56.3°F55.9°F+0.4°NCLIMGRID
1950May58.0°F59.6°F-1.6°NCLIMGRID
1950Jun60.2°F63.0°F-2.8°NCLIMGRID
1950Jul63.9°F64.8°F-0.8°NCLIMGRID
1950Aug65.0°F64.9°F+0.1°NCLIMGRID
1950Sep64.5°F64.4°F+0.1°NCLIMGRID
1950Oct60.5°F60.7°F-0.2°NCLIMGRID
1950Nov59.1°F54.4°F+4.6°NCLIMGRID
1950Dec52.7°F49.3°F+3.4°NCLIMGRID
1951Jan49.1°F49.1°F+0.1°NCLIMGRID
1951Feb50.5°F52.3°F-1.9°NCLIMGRID
1951Mar52.4°F53.7°F-1.3°NCLIMGRID
1951Apr53.7°F55.9°F-2.2°NCLIMGRID
1951May59.4°F59.6°F-0.2°NCLIMGRID
1951Jun60.8°F63.0°F-2.2°NCLIMGRID
1951Jul62.3°F64.8°F-2.5°NCLIMGRID
1951Aug62.9°F64.9°F-2.0°NCLIMGRID
1951Sep63.0°F64.4°F-1.4°NCLIMGRID
1951Oct59.9°F60.7°F-0.8°NCLIMGRID
1951Nov54.7°F54.4°F+0.2°NCLIMGRID
1951Dec48.1°F49.3°F-1.2°NCLIMGRID
1952Jan46.6°F49.1°F-2.4°NCLIMGRID
1952Feb50.6°F52.3°F-1.7°NCLIMGRID
1952Mar50.3°F53.7°F-3.4°NCLIMGRID
1952Apr55.7°F55.9°F-0.2°NCLIMGRID
1952May59.6°F59.6°F+0.0°NCLIMGRID
1952Jun59.3°F63.0°F-3.6°NCLIMGRID
1952Jul64.8°F64.8°F+0.0°NCLIMGRID
1952Aug62.8°F64.9°F-2.1°NCLIMGRID
1952Sep64.5°F64.4°F+0.1°NCLIMGRID
1952Oct60.4°F60.7°F-0.3°NCLIMGRID
1952Nov52.2°F54.4°F-2.2°NCLIMGRID
1952Dec50.3°F49.3°F+1.0°NCLIMGRID
1953Jan52.7°F49.1°F+3.6°NCLIMGRID
1953Feb50.8°F52.3°F-1.5°NCLIMGRID
1953Mar51.5°F53.7°F-2.2°NCLIMGRID
1953Apr53.6°F55.9°F-2.3°NCLIMGRID
1953May56.7°F59.6°F-2.9°NCLIMGRID
1953Jun59.7°F63.0°F-3.3°NCLIMGRID
1953Jul64.1°F64.8°F-0.6°NCLIMGRID
1953Aug62.8°F64.9°F-2.1°NCLIMGRID
1953Sep65.2°F64.4°F+0.8°NCLIMGRID
1953Oct58.9°F60.7°F-1.8°NCLIMGRID
1953Nov55.7°F54.4°F+1.2°NCLIMGRID
1953Dec51.2°F49.3°F+1.9°NCLIMGRID
1954Jan49.2°F49.1°F+0.2°NCLIMGRID
1954Feb52.0°F52.3°F-0.3°NCLIMGRID
1954Mar50.2°F53.7°F-3.5°NCLIMGRID
1954Apr57.7°F55.9°F+1.8°NCLIMGRID
1954May58.6°F59.6°F-1.0°NCLIMGRID
1954Jun61.3°F63.0°F-1.7°NCLIMGRID
1954Jul64.6°F64.8°F-0.2°NCLIMGRID
1954Aug61.5°F64.9°F-3.4°NCLIMGRID
1954Sep62.3°F64.4°F-2.1°NCLIMGRID
1954Oct59.2°F60.7°F-1.5°NCLIMGRID
1954Nov54.4°F54.4°F+0.0°NCLIMGRID
1954Dec48.4°F49.3°F-0.9°NCLIMGRID
1955Jan45.6°F49.1°F-3.5°NCLIMGRID
1955Feb49.2°F52.3°F-3.1°NCLIMGRID
1955Mar52.6°F53.7°F-1.1°NCLIMGRID
1955Apr51.2°F55.9°F-4.7°NCLIMGRID
1955May58.6°F59.6°F-1.0°NCLIMGRID
1955Jun60.5°F63.0°F-2.5°NCLIMGRID
1955Jul61.2°F64.8°F-3.6°NCLIMGRID
1955Aug62.0°F64.9°F-3.0°NCLIMGRID
1955Sep62.3°F64.4°F-2.1°NCLIMGRID
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1984Feb52.1°F52.3°F-0.2°NCLIMGRID
1984Mar56.8°F53.7°F+3.1°NCLIMGRID
1984Apr55.0°F55.9°F-0.9°NCLIMGRID
1984May62.2°F59.6°F+2.6°NCLIMGRID
1984Jun62.7°F63.0°F-0.3°NCLIMGRID
1984Jul67.9°F64.8°F+3.2°NCLIMGRID
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1984Sep69.5°F64.4°F+5.1°NCLIMGRID
1984Oct59.6°F60.7°F-1.1°NCLIMGRID
1984Nov52.9°F54.4°F-1.5°NCLIMGRID
1984Dec47.9°F49.3°F-1.4°NCLIMGRID
1985Jan47.2°F49.1°F-1.9°NCLIMGRID
1985Feb52.3°F52.3°F+0.0°NCLIMGRID
1985Mar51.2°F53.7°F-2.5°NCLIMGRID
1985Apr59.3°F55.9°F+3.4°NCLIMGRID
1985May58.5°F59.6°F-1.0°NCLIMGRID
1985Jun65.8°F63.0°F+2.8°NCLIMGRID
1985Jul66.8°F64.8°F+2.0°NCLIMGRID
1985Aug64.0°F64.9°F-0.9°NCLIMGRID
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1985Nov51.6°F54.4°F-2.9°NCLIMGRID
1985Dec47.9°F49.3°F-1.4°NCLIMGRID
1986Jan54.0°F49.1°F+5.0°NCLIMGRID
1986Feb55.6°F52.3°F+3.2°NCLIMGRID
1986Mar57.3°F53.7°F+3.6°NCLIMGRID
1986Apr56.5°F55.9°F+0.6°NCLIMGRID
1986May59.7°F59.6°F+0.1°NCLIMGRID
1986Jun64.0°F63.0°F+1.1°NCLIMGRID
1986Jul64.9°F64.8°F+0.1°NCLIMGRID
1986Aug63.7°F64.9°F-1.2°NCLIMGRID
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1986Oct61.5°F60.7°F+0.8°NCLIMGRID
1986Nov55.9°F54.4°F+1.4°NCLIMGRID
1986Dec49.8°F49.3°F+0.5°NCLIMGRID
1987Jan48.5°F49.1°F-0.6°NCLIMGRID
1987Feb53.1°F52.3°F+0.8°NCLIMGRID
1987Mar54.3°F53.7°F+0.6°NCLIMGRID
1987Apr60.1°F55.9°F+4.2°NCLIMGRID
1987May62.1°F59.6°F+2.5°NCLIMGRID
1987Jun63.1°F63.0°F+0.1°NCLIMGRID
1987Jul62.7°F64.8°F-2.1°NCLIMGRID
1987Aug65.0°F64.9°F+0.1°NCLIMGRID
1987Sep64.3°F64.4°F-0.1°NCLIMGRID
1987Oct63.5°F60.7°F+2.8°NCLIMGRID
1987Nov55.3°F54.4°F+0.9°NCLIMGRID
1987Dec50.1°F49.3°F+0.8°NCLIMGRID
1988Jan50.4°F49.1°F+1.3°NCLIMGRID
1988Feb54.2°F52.3°F+1.9°NCLIMGRID
1988Mar56.0°F53.7°F+2.4°NCLIMGRID
1988Apr58.0°F55.9°F+2.1°NCLIMGRID
1988May59.0°F59.6°F-0.6°NCLIMGRID
1988Jun63.1°F63.0°F+0.1°NCLIMGRID
1988Jul67.4°F64.8°F+2.6°NCLIMGRID
1988Aug65.7°F64.9°F+0.8°NCLIMGRID
1988Sep63.2°F64.4°F-1.2°NCLIMGRID
1988Oct61.7°F60.7°F+1.0°NCLIMGRID
1988Nov55.3°F54.4°F+0.9°NCLIMGRID
1988Dec49.3°F49.3°F+0.0°NCLIMGRID
1989Jan47.6°F49.1°F-1.5°NCLIMGRID
1989Feb48.2°F52.3°F-4.1°NCLIMGRID
1989Mar55.4°F53.7°F+1.7°NCLIMGRID
1989Apr60.7°F55.9°F+4.8°NCLIMGRID
1989May59.8°F59.6°F+0.2°NCLIMGRID
1989Jun64.0°F63.0°F+1.0°NCLIMGRID
1989Jul64.5°F64.8°F-0.3°NCLIMGRID
1989Aug65.0°F64.9°F+0.1°NCLIMGRID
1989Sep62.5°F64.4°F-1.9°NCLIMGRID
1989Oct60.2°F60.7°F-0.5°NCLIMGRID
1989Nov55.5°F54.4°F+1.1°NCLIMGRID
1989Dec49.4°F49.3°F+0.1°NCLIMGRID
1990Jan49.5°F49.1°F+0.4°NCLIMGRID
1990Feb48.7°F52.3°F-3.6°NCLIMGRID
1990Mar54.1°F53.7°F+0.4°NCLIMGRID
1990Apr59.5°F55.9°F+3.5°NCLIMGRID
1990May60.5°F59.6°F+0.9°NCLIMGRID
1990Jun63.7°F63.0°F+0.8°NCLIMGRID
1990Jul66.1°F64.8°F+1.3°NCLIMGRID
1990Aug66.8°F64.9°F+1.9°NCLIMGRID
1990Sep65.4°F64.4°F+1.1°NCLIMGRID
1990Oct62.8°F60.7°F+2.1°NCLIMGRID
1990Nov54.5°F54.4°F+0.1°NCLIMGRID
1990Dec44.7°F49.3°F-4.6°NCLIMGRID
1991Jan49.1°F49.1°F+0.0°NCLIMGRID
1991Feb55.3°F52.3°F+3.0°NCLIMGRID
1991Mar51.1°F53.7°F-2.6°NCLIMGRID
1991Apr55.4°F55.9°F-0.6°NCLIMGRID
1991May57.7°F59.6°F-1.9°NCLIMGRID
1991Jun60.7°F63.0°F-2.3°NCLIMGRID
1991Jul65.5°F64.8°F+0.7°NCLIMGRID
1991Aug64.9°F64.9°F+0.0°NCLIMGRID
1991Sep65.3°F64.4°F+0.9°NCLIMGRID
1991Oct63.4°F60.7°F+2.7°NCLIMGRID
1991Nov56.1°F54.4°F+1.7°NCLIMGRID
1991Dec49.8°F49.3°F+0.5°NCLIMGRID
1992Jan47.9°F49.1°F-1.1°NCLIMGRID
1992Feb55.7°F52.3°F+3.4°NCLIMGRID
1992Mar56.4°F53.7°F+2.7°NCLIMGRID
1992Apr60.7°F55.9°F+4.8°NCLIMGRID
1992May64.2°F59.6°F+4.6°NCLIMGRID
1992Jun63.8°F63.0°F+0.8°NCLIMGRID
1992Jul66.3°F64.8°F+1.6°NCLIMGRID
1992Aug65.8°F64.9°F+0.9°NCLIMGRID
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1992Oct64.2°F60.7°F+3.5°NCLIMGRID
1992Nov55.6°F54.4°F+1.1°NCLIMGRID
1992Dec48.4°F49.3°F-0.9°NCLIMGRID
1993Jan48.4°F49.1°F-0.7°NCLIMGRID
1993Feb51.1°F52.3°F-1.2°NCLIMGRID
1993Mar56.7°F53.7°F+3.0°NCLIMGRID
1993Apr57.2°F55.9°F+1.3°NCLIMGRID
1993May61.5°F59.6°F+1.9°NCLIMGRID
1993Jun66.1°F63.0°F+3.1°NCLIMGRID
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1993Nov54.2°F54.4°F-0.2°NCLIMGRID
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1994Jan50.4°F49.1°F+1.3°NCLIMGRID
1994Feb49.7°F52.3°F-2.6°NCLIMGRID
1994Mar55.8°F53.7°F+2.1°NCLIMGRID
1994Apr56.8°F55.9°F+0.9°NCLIMGRID
1994May58.8°F59.6°F-0.7°NCLIMGRID
1994Jun63.3°F63.0°F+0.3°NCLIMGRID
1994Jul63.8°F64.8°F-1.0°NCLIMGRID
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1994Nov49.4°F54.4°F-5.0°NCLIMGRID
1994Dec47.2°F49.3°F-2.1°NCLIMGRID
1995Jan52.7°F49.1°F+3.6°NCLIMGRID
1995Feb55.2°F52.3°F+2.9°NCLIMGRID
1995Mar53.5°F53.7°F-0.2°NCLIMGRID
1995Apr55.9°F55.9°F+0.0°NCLIMGRID
1995May58.1°F59.6°F-1.5°NCLIMGRID
1995Jun62.7°F63.0°F-0.2°NCLIMGRID
1995Jul67.2°F64.8°F+2.5°NCLIMGRID
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1995Oct63.1°F60.7°F+2.4°NCLIMGRID
1995Nov58.8°F54.4°F+4.4°NCLIMGRID
1995Dec53.6°F49.3°F+4.3°NCLIMGRID
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1996Feb55.2°F52.3°F+2.9°NCLIMGRID
1996Mar56.1°F53.7°F+2.4°NCLIMGRID
1996Apr59.4°F55.9°F+3.5°NCLIMGRID
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1996Nov55.2°F54.4°F+0.8°NCLIMGRID
1996Dec53.0°F49.3°F+3.6°NCLIMGRID
1997Jan51.0°F49.1°F+1.9°NCLIMGRID
1997Feb53.1°F52.3°F+0.8°NCLIMGRID
1997Mar56.7°F53.7°F+3.0°NCLIMGRID
1997Apr58.9°F55.9°F+2.9°NCLIMGRID
1997May64.5°F59.6°F+4.9°NCLIMGRID
1997Jun64.2°F63.0°F+1.2°NCLIMGRID
1997Jul66.3°F64.8°F+1.6°NCLIMGRID
1997Aug66.6°F64.9°F+1.7°NCLIMGRID
1997Sep67.7°F64.4°F+3.3°NCLIMGRID
1997Oct60.8°F60.7°F+0.1°NCLIMGRID
1997Nov56.7°F54.4°F+2.3°NCLIMGRID
1997Dec49.6°F49.3°F+0.3°NCLIMGRID
1998Jan52.7°F49.1°F+3.7°NCLIMGRID
1998Feb51.8°F52.3°F-0.5°NCLIMGRID
1998Mar54.6°F53.7°F+0.9°NCLIMGRID
1998Apr55.2°F55.9°F-0.7°NCLIMGRID
1998May56.2°F59.6°F-3.3°NCLIMGRID
1998Jun61.7°F63.0°F-1.2°NCLIMGRID
1998Jul65.1°F64.8°F+0.3°NCLIMGRID
1998Aug67.4°F64.9°F+2.5°NCLIMGRID
1998Sep65.4°F64.4°F+1.0°NCLIMGRID
1998Oct59.1°F60.7°F-1.6°NCLIMGRID
1998Nov53.5°F54.4°F-1.0°NCLIMGRID
1998Dec46.5°F49.3°F-2.8°NCLIMGRID
1999Jan49.4°F49.1°F+0.3°NCLIMGRID
1999Feb49.9°F52.3°F-2.5°NCLIMGRID
1999Mar50.6°F53.7°F-3.1°NCLIMGRID
1999Apr55.3°F55.9°F-0.6°NCLIMGRID
1999May56.6°F59.6°F-3.0°NCLIMGRID
1999Jun61.3°F63.0°F-1.6°NCLIMGRID
1999Jul63.7°F64.8°F-1.1°NCLIMGRID
1999Aug64.3°F64.9°F-0.6°NCLIMGRID
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1999Oct63.4°F60.7°F+2.7°NCLIMGRID
1999Nov55.9°F54.4°F+1.5°NCLIMGRID
1999Dec50.8°F49.3°F+1.5°NCLIMGRID
2000Jan51.4°F49.1°F+2.4°NCLIMGRID
2000Feb53.3°F52.3°F+1.0°NCLIMGRID
2000Mar54.6°F53.7°F+0.9°NCLIMGRID
2000Apr58.4°F55.9°F+2.5°NCLIMGRID
2000May61.2°F59.6°F+1.7°NCLIMGRID
2000Jun65.2°F63.0°F+2.2°NCLIMGRID
2000Jul63.1°F64.8°F-1.6°NCLIMGRID
2000Aug65.3°F64.9°F+0.4°NCLIMGRID
2000Sep65.8°F64.4°F+1.4°NCLIMGRID
2000Oct59.5°F60.7°F-1.2°NCLIMGRID
2000Nov51.4°F54.4°F-3.1°NCLIMGRID
2000Dec51.6°F49.3°F+2.3°NCLIMGRID
2001Jan48.6°F49.1°F-0.5°NCLIMGRID
2001Feb50.3°F52.3°F-2.0°NCLIMGRID
2001Mar56.3°F53.7°F+2.6°NCLIMGRID
2001Apr53.6°F55.9°F-2.3°NCLIMGRID
2001May64.7°F59.6°F+5.1°NCLIMGRID
2001Jun66.0°F63.0°F+3.0°NCLIMGRID
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2001Aug64.6°F64.9°F-0.3°NCLIMGRID
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2001Oct62.7°F60.7°F+2.0°NCLIMGRID
2001Nov56.2°F54.4°F+1.8°NCLIMGRID
2001Dec50.5°F49.3°F+1.2°NCLIMGRID
2002Jan47.7°F49.1°F-1.3°NCLIMGRID
2002Feb53.1°F52.3°F+0.8°NCLIMGRID
2002Mar53.2°F53.7°F-0.5°NCLIMGRID
2002Apr56.9°F55.9°F+1.0°NCLIMGRID
2002May58.7°F59.6°F-0.9°NCLIMGRID
2002Jun63.0°F63.0°F+0.1°NCLIMGRID
2002Jul65.5°F64.8°F+0.8°NCLIMGRID
2002Aug65.3°F64.9°F+0.4°NCLIMGRID
2002Sep66.0°F64.4°F+1.6°NCLIMGRID
2002Oct60.6°F60.7°F-0.1°NCLIMGRID
2002Nov56.8°F54.4°F+2.4°NCLIMGRID
2002Dec51.5°F49.3°F+2.2°NCLIMGRID
2003Jan54.6°F49.1°F+5.5°NCLIMGRID
2003Feb51.8°F52.3°F-0.5°NCLIMGRID
2003Mar55.5°F53.7°F+1.8°NCLIMGRID
2003Apr53.2°F55.9°F-2.7°NCLIMGRID
2003May60.1°F59.6°F+0.6°NCLIMGRID
2003Jun64.5°F63.0°F+1.5°NCLIMGRID
2003Jul67.1°F64.8°F+2.3°NCLIMGRID
2003Aug66.5°F64.9°F+1.6°NCLIMGRID
2003Sep67.2°F64.4°F+2.8°NCLIMGRID
2003Oct64.0°F60.7°F+3.3°NCLIMGRID
2003Nov52.7°F54.4°F-1.7°NCLIMGRID
2003Dec51.1°F49.3°F+1.8°NCLIMGRID
2004Jan49.5°F49.1°F+0.4°NCLIMGRID
2004Feb51.5°F52.3°F-0.8°NCLIMGRID
2004Mar60.1°F53.7°F+6.4°NCLIMGRID
2004Apr59.4°F55.9°F+3.5°NCLIMGRID
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2004Jun63.4°F63.0°F+0.4°NCLIMGRID
2004Jul66.0°F64.8°F+1.2°NCLIMGRID
2004Aug66.4°F64.9°F+1.5°NCLIMGRID
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2004Oct59.6°F60.7°F-1.1°NCLIMGRID
2004Nov53.5°F54.4°F-0.9°NCLIMGRID
2004Dec50.8°F49.3°F+1.5°NCLIMGRID
2005Jan48.9°F49.1°F-0.2°NCLIMGRID
2005Feb54.2°F52.3°F+1.9°NCLIMGRID
2005Mar56.8°F53.7°F+3.1°NCLIMGRID
2005Apr56.1°F55.9°F+0.1°NCLIMGRID
2005May60.9°F59.6°F+1.3°NCLIMGRID
2005Jun62.5°F63.0°F-0.5°NCLIMGRID
2005Jul67.0°F64.8°F+2.3°NCLIMGRID
2005Aug65.5°F64.9°F+0.6°NCLIMGRID
2005Sep62.3°F64.4°F-2.1°NCLIMGRID
2005Oct60.8°F60.7°F+0.1°NCLIMGRID
2005Nov56.4°F54.4°F+2.0°NCLIMGRID
2005Dec52.9°F49.3°F+3.6°NCLIMGRID
2006Jan50.7°F49.1°F+1.6°NCLIMGRID
2006Feb53.1°F52.3°F+0.7°NCLIMGRID
2006Mar50.4°F53.7°F-3.3°NCLIMGRID
2006Apr55.5°F55.9°F-0.5°NCLIMGRID
2006May61.4°F59.6°F+1.9°NCLIMGRID
2006Jun65.5°F63.0°F+2.5°NCLIMGRID
2006Jul69.0°F64.8°F+4.3°NCLIMGRID
2006Aug64.7°F64.9°F-0.3°NCLIMGRID
2006Sep63.7°F64.4°F-0.7°NCLIMGRID
2006Oct59.8°F60.7°F-0.9°NCLIMGRID
2006Nov54.5°F54.4°F+0.1°NCLIMGRID
2006Dec49.4°F49.3°F+0.1°NCLIMGRID
2007Jan47.6°F49.1°F-1.4°NCLIMGRID
2007Feb52.3°F52.3°F-0.1°NCLIMGRID
2007Mar56.7°F53.7°F+3.0°NCLIMGRID
2007Apr57.0°F55.9°F+1.0°NCLIMGRID
2007May60.5°F59.6°F+0.9°NCLIMGRID
2007Jun63.4°F63.0°F+0.4°NCLIMGRID
2007Jul65.7°F64.8°F+0.9°NCLIMGRID
2007Aug66.2°F64.9°F+1.3°NCLIMGRID
2007Sep64.0°F64.4°F-0.4°NCLIMGRID
2007Oct59.3°F60.7°F-1.4°NCLIMGRID
2007Nov55.8°F54.4°F+1.4°NCLIMGRID
2007Dec48.3°F49.3°F-1.0°NCLIMGRID
2008Jan47.9°F49.1°F-1.2°NCLIMGRID
2008Feb51.7°F52.3°F-0.6°NCLIMGRID
2008Mar54.1°F53.7°F+0.4°NCLIMGRID
2008Apr55.8°F55.9°F-0.1°NCLIMGRID
2008May60.4°F59.6°F+0.9°NCLIMGRID
2008Jun64.6°F63.0°F+1.6°NCLIMGRID
2008Jul66.2°F64.8°F+1.4°NCLIMGRID
2008Aug66.8°F64.9°F+1.9°NCLIMGRID
2008Sep66.0°F64.4°F+1.6°NCLIMGRID
2008Oct62.4°F60.7°F+1.7°NCLIMGRID
2008Nov56.7°F54.4°F+2.3°NCLIMGRID
2008Dec47.6°F49.3°F-1.7°NCLIMGRID
2009Jan51.5°F49.1°F+2.4°NCLIMGRID
2009Feb51.7°F52.3°F-0.6°NCLIMGRID
2009Mar53.7°F53.7°F+0.0°NCLIMGRID
2009Apr56.9°F55.9°F+1.0°NCLIMGRID
2009May61.9°F59.6°F+2.3°NCLIMGRID
2009Jun63.4°F63.0°F+0.4°NCLIMGRID
2009Jul65.5°F64.8°F+0.7°NCLIMGRID
2009Aug66.6°F64.9°F+1.7°NCLIMGRID
2009Sep67.4°F64.4°F+3.0°NCLIMGRID
2009Oct60.7°F60.7°F+0.0°NCLIMGRID
2009Nov54.1°F54.4°F-0.3°NCLIMGRID
2009Dec49.1°F49.3°F-0.2°NCLIMGRID
2010Jan50.8°F49.1°F+1.7°NCLIMGRID
2010Feb53.2°F52.3°F+0.8°NCLIMGRID
2010Mar54.0°F53.7°F+0.3°NCLIMGRID
2010Apr54.2°F55.9°F-1.8°NCLIMGRID
2010May57.0°F59.6°F-2.6°NCLIMGRID
2010Jun63.4°F63.0°F+0.5°NCLIMGRID
2010Jul64.0°F64.8°F-0.8°NCLIMGRID
2010Aug63.8°F64.9°F-1.1°NCLIMGRID
2010Sep65.7°F64.4°F+1.3°NCLIMGRID
2010Oct61.6°F60.7°F+0.9°NCLIMGRID
2010Nov54.2°F54.4°F-0.2°NCLIMGRID
2010Dec52.2°F49.3°F+2.9°NCLIMGRID
2011Jan50.8°F49.1°F+1.7°NCLIMGRID
2011Feb50.1°F52.3°F-2.2°NCLIMGRID
2011Mar53.5°F53.7°F-0.2°NCLIMGRID
2011Apr55.9°F55.9°F-0.1°NCLIMGRID
2011May57.3°F59.6°F-2.2°NCLIMGRID
2011Jun62.0°F63.0°F-1.0°NCLIMGRID
2011Jul65.0°F64.8°F+0.3°NCLIMGRID
2011Aug64.5°F64.9°F-0.4°NCLIMGRID
2011Sep66.1°F64.4°F+1.7°NCLIMGRID
2011Oct63.1°F60.7°F+2.4°NCLIMGRID
2011Nov53.2°F54.4°F-1.2°NCLIMGRID
2011Dec48.9°F49.3°F-0.4°NCLIMGRID
2012Jan50.7°F49.1°F+1.7°NCLIMGRID
2012Feb52.8°F52.3°F+0.5°NCLIMGRID
2012Mar53.0°F53.7°F-0.7°NCLIMGRID
2012Apr57.6°F55.9°F+1.7°NCLIMGRID
2012May60.4°F59.6°F+0.8°NCLIMGRID
2012Jun63.7°F63.0°F+0.7°NCLIMGRID
2012Jul64.5°F64.8°F-0.3°NCLIMGRID
2012Aug64.8°F64.9°F-0.1°NCLIMGRID
2012Sep62.1°F64.4°F-2.3°NCLIMGRID
2012Oct62.9°F60.7°F+2.2°NCLIMGRID
2012Nov57.0°F54.4°F+2.6°NCLIMGRID
2012Dec50.3°F49.3°F+1.0°NCLIMGRID
2013Jan47.6°F49.1°F-1.4°NCLIMGRID
2013Feb50.6°F52.3°F-1.7°NCLIMGRID
2013Mar56.1°F53.7°F+2.4°NCLIMGRID
2013Apr60.3°F55.9°F+4.4°NCLIMGRID
2013May62.0°F59.6°F+2.4°NCLIMGRID
2013Jun65.4°F63.0°F+2.5°NCLIMGRID
2013Jul65.9°F64.8°F+1.2°NCLIMGRID
2013Aug66.1°F64.9°F+1.2°NCLIMGRID
2013Sep65.9°F64.4°F+1.5°NCLIMGRID
2013Oct60.0°F60.7°F-0.7°NCLIMGRID
2013Nov55.6°F54.4°F+1.1°NCLIMGRID
2013Dec48.5°F49.3°F-0.9°NCLIMGRID
2014Jan54.4°F49.1°F+5.4°NCLIMGRID
2014Feb54.3°F52.3°F+2.0°NCLIMGRID
2014Mar58.3°F53.7°F+4.6°NCLIMGRID
2014Apr59.2°F55.9°F+3.3°NCLIMGRID
2014May63.5°F59.6°F+3.9°NCLIMGRID
2014Jun64.6°F63.0°F+1.6°NCLIMGRID
2014Jul67.7°F64.8°F+2.9°NCLIMGRID
2014Aug67.0°F64.9°F+2.1°NCLIMGRID
2014Sep66.5°F64.4°F+2.2°NCLIMGRID
2014Oct64.7°F60.7°F+4.0°NCLIMGRID
2014Nov57.7°F54.4°F+3.2°NCLIMGRID
2014Dec55.4°F49.3°F+6.1°NCLIMGRID
2015Jan52.6°F49.1°F+3.5°NCLIMGRID
2015Feb57.7°F52.3°F+5.4°NCLIMGRID
2015Mar59.7°F53.7°F+6.0°NCLIMGRID
2015Apr58.6°F55.9°F+2.7°NCLIMGRID
2015May59.0°F59.6°F-0.5°NCLIMGRID
2015Jun65.4°F63.0°F+2.4°NCLIMGRID
2015Jul68.5°F64.8°F+3.7°NCLIMGRID
2015Aug68.9°F64.9°F+4.0°NCLIMGRID
2015Sep68.7°F64.4°F+4.3°NCLIMGRID
2015Oct66.0°F60.7°F+5.3°NCLIMGRID
2015Nov52.6°F54.4°F-1.8°NCLIMGRID
2015Dec49.2°F49.3°F-0.1°NCLIMGRID
2016Jan52.2°F49.1°F+3.2°NCLIMGRID
2016Feb57.2°F52.3°F+4.9°NCLIMGRID
2016Mar56.7°F53.7°F+3.0°NCLIMGRID
2016Apr59.9°F55.9°F+4.0°NCLIMGRID
2016May62.0°F59.6°F+2.4°NCLIMGRID
2016Jun66.3°F63.0°F+3.3°NCLIMGRID
2016Jul65.4°F64.8°F+0.7°NCLIMGRID
2016Aug65.1°F64.9°F+0.2°NCLIMGRID
2016Sep65.8°F64.4°F+1.4°NCLIMGRID
2016Oct61.1°F60.7°F+0.4°NCLIMGRID
2016Nov56.9°F54.4°F+2.4°NCLIMGRID
2016Dec49.2°F49.3°F-0.1°NCLIMGRID
2017Jan48.9°F49.1°F-0.1°NCLIMGRID
2017Feb53.8°F52.3°F+1.4°NCLIMGRID
2017Mar56.8°F53.7°F+3.1°NCLIMGRID
2017Apr58.0°F55.9°F+2.0°NCLIMGRID
2017May62.0°F59.6°F+2.5°NCLIMGRID
2017Jun65.0°F63.0°F+2.1°NCLIMGRID
2017Jul66.8°F64.8°F+2.0°NCLIMGRID
2017Aug67.1°F64.9°F+2.2°NCLIMGRID
2017Sep69.5°F64.4°F+5.2°NCLIMGRID
2017Oct63.1°F60.7°F+2.4°NCLIMGRID
2017Nov56.5°F54.4°F+2.1°NCLIMGRID
2017Dec51.2°F49.3°F+1.9°NCLIMGRID
2018Jan53.0°F49.1°F+3.9°NCLIMGRID
2018Feb53.5°F52.3°F+1.2°NCLIMGRID
2018Mar53.9°F53.7°F+0.2°NCLIMGRID
2018Apr57.5°F55.9°F+1.6°NCLIMGRID
2018May59.8°F59.6°F+0.2°NCLIMGRID
2018Jun64.3°F63.0°F+1.3°NCLIMGRID
2018Jul67.2°F64.8°F+2.4°NCLIMGRID
2018Aug65.3°F64.9°F+0.4°NCLIMGRID
2018Sep63.3°F64.4°F-1.1°NCLIMGRID
2018Oct62.4°F60.7°F+1.7°NCLIMGRID
2018Nov57.0°F54.4°F+2.6°NCLIMGRID
2018Dec51.7°F49.3°F+2.4°NCLIMGRID
2019Jan53.0°F49.1°F+4.0°NCLIMGRID
2019Feb48.9°F52.3°F-3.4°NCLIMGRID
2019Mar53.9°F53.7°F+0.2°NCLIMGRID
2019Apr60.0°F55.9°F+4.1°NCLIMGRID
2019May59.1°F59.6°F-0.4°NCLIMGRID
2019Jun66.7°F63.0°F+3.7°NCLIMGRID
2019Jul66.3°F64.8°F+1.5°NCLIMGRID
2019Aug68.7°F64.9°F+3.8°NCLIMGRID
2019Sep67.2°F64.4°F+2.8°NCLIMGRID
2019Oct62.3°F60.7°F+1.6°NCLIMGRID
2019Nov55.7°F54.4°F+1.3°NCLIMGRID
2019Dec52.3°F49.3°F+2.9°NCLIMGRID
2020Jan50.7°F49.1°F+1.6°NCLIMGRID
2020Feb55.2°F52.3°F+2.9°NCLIMGRID
2020Mar54.2°F53.7°F+0.5°NCLIMGRID
2020Apr58.4°F55.9°F+2.4°NCLIMGRID
2020May63.3°F59.6°F+3.7°NCLIMGRID
2020Jun66.4°F63.0°F+3.4°NCLIMGRID
2020Jul66.4°F64.8°F+1.6°NCLIMGRID
2020Aug70.1°F64.9°F+5.1°NCLIMGRID
2020Sep69.6°F64.4°F+5.2°NCLIMGRID
2020Oct67.2°F60.7°F+6.5°NCLIMGRID
2020Nov55.0°F54.4°F+0.6°NCLIMGRID
2020Dec51.8°F49.3°F+2.5°NCLIMGRID
2021Jan51.8°F49.1°F+2.8°NCLIMGRID
2021Feb53.2°F52.3°F+0.9°NCLIMGRID
2021Mar53.0°F53.7°F-0.7°NCLIMGRID
2021Apr57.1°F55.9°F+1.1°NCLIMGRID
2021May60.7°F59.6°F+1.1°NCLIMGRID
2021Jun65.6°F63.0°F+2.6°NCLIMGRID
2021Jul66.3°F64.8°F+1.5°NCLIMGRID
2021Aug67.3°F64.9°F+2.4°NCLIMGRID
2021Sep66.5°F64.4°F+2.1°NCLIMGRID
2021Oct61.0°F60.7°F+0.3°NCLIMGRID
2021Nov58.2°F54.4°F+3.8°NCLIMGRID
2021Dec49.5°F49.3°F+0.2°NCLIMGRID
2022Jan52.0°F49.1°F+2.9°NCLIMGRID
2022Feb53.2°F52.3°F+0.9°NCLIMGRID
2022Mar55.6°F53.7°F+1.9°NCLIMGRID
2022Apr57.3°F55.9°F+1.4°NCLIMGRID
2022May60.5°F59.6°F+1.0°NCLIMGRID
2022Jun65.8°F63.0°F+2.8°NCLIMGRID
2022Jul65.0°F64.8°F+0.2°NCLIMGRID
2022Aug67.8°F64.9°F+2.9°NCLIMGRID
2022Sep68.7°F64.4°F+4.3°NCLIMGRID
2022Oct61.7°F60.7°F+1.0°NCLIMGRID
2022Nov52.0°F54.4°F-2.4°NCLIMGRID
2022Dec49.3°F49.3°F+0.0°NCLIMGRID
2023Jan50.8°F49.1°F+1.7°NCLIMGRID
2023Feb49.1°F52.3°F-3.2°NCLIMGRID
2023Mar50.7°F53.7°F-3.0°NCLIMGRID
2023Apr56.5°F55.9°F+0.6°NCLIMGRID
2023May59.8°F59.6°F+0.3°NCLIMGRID
2023Jun62.5°F63.0°F-0.5°NCLIMGRID
2023Jul66.3°F64.8°F+1.5°NCLIMGRID
2023Aug68.7°F64.9°F+3.8°NCLIMGRID
2023Sep64.6°F64.4°F+0.2°NCLIMGRID
2023Oct64.0°F60.7°F+3.3°NCLIMGRID
2023Nov57.8°F54.4°F+3.3°NCLIMGRID
2023Dec53.7°F49.3°F+4.4°NCLIMGRID
2024Jan53.2°F49.1°F+4.1°NCLIMGRID
2024Feb53.6°F52.3°F+1.3°NCLIMGRID
2024Mar55.3°F53.7°F+1.6°NCLIMGRID
2024Apr58.2°F55.9°F+2.2°NCLIMGRID
2024May61.4°F59.6°F+1.8°NCLIMGRID
2024Jun65.6°F63.0°F+2.6°NCLIMGRID
2024Jul69.8°F64.8°F+5.0°NCLIMGRID
2024Aug67.0°F64.9°F+2.1°NCLIMGRID
2024Sep66.6°F64.4°F+2.2°NCLIMGRID
2024Oct66.6°F60.7°F+5.9°NCLIMGRID
2024Nov54.4°F54.4°F+0.0°NCLIMGRID
2024Dec54.2°F49.3°F+4.9°NCLIMGRID
2025Jan50.0°F49.1°F+1.0°NCLIMGRID
2025Feb52.5°F52.3°F+0.2°NCLIMGRID
2025Mar54.0°F53.7°F+0.3°NCLIMGRID
2025Apr56.5°F55.9°F+0.6°NCLIMGRID
2025May60.9°F59.6°F+1.3°NCLIMGRID
2025Jun62.6°F63.0°F-0.3°NCLIMGRID
2025Jul64.5°F64.8°F-0.3°NCLIMGRID
2025Aug67.9°F64.9°F+3.0°NCLIMGRID
2025Sep67.7°F64.4°F+3.3°NCLIMGRID
2025Oct61.2°F60.7°F+0.5°NCLIMGRID
2025Nov57.5°F54.4°F+3.0°NCLIMGRID
2025Dec53.0°F49.3°F+3.7°NCLIMGRID
2026Jan54.1°F49.1°F+5.0°NCLIMGRID
2026Feb55.7°F52.3°F+3.4°NCLIMGRID

Showing 1,154 of 1,154 records. = gap-filled data

This table shows raw (unsmoothed) monthly anomalies. The spiral applies a 12-month moving average to highlight long-term trends.

Methodology

Methodology How we calculate anomalies

1. Data Acquisition

We use NOAA's nClimGrid dataset, which provides homogenized temperature data on a 5km grid, for the nearest grid point with historical coverage starting from 1930.

Temperature metric: Monthly average temperature (TAVG). When TAVG is unavailable, we use (TMAX + TMIN) / 2 as a proxy.

2. Gap Filling

Some months may have missing data. We fill gaps using data from nearby weather stations (within ~200km).

10

Initial gaps

0

Filled

10

Unfillable

3. Baseline Calculation

The baseline is a 25-year window dynamically centered on the data's midpoint, requiring at least 90% coverage. If coverage is insufficient, the window shifts forward in 5-year increments until the threshold is met.

Period: 1966 – 1991 (100% coverage)

MonthBaselineYears
January49.1°F26/26
February52.3°F26/26
March53.7°F26/26
April55.9°F26/26
May59.6°F26/26
June63.0°F26/26
July64.8°F26/26
August64.9°F26/26
September64.4°F26/26
October60.7°F26/26
November54.4°F26/26
December49.3°F26/26

4. Anomaly Calculation

For each month, we calculate how far it deviates from the baseline. These are raw monthly anomalies.

Anomaly = Actual Temperature − Baseline[month]

5. Smoothing

The spiral visualization applies a 12-month centered moving average to reduce month-to-month noise and highlight multi-year warming trends. The spiral shows smoothed values, not raw anomalies.

6. Reading the Visualizations

Spiral: A 3D helix where each loop represents one year. The radius indicates the smoothed temperature anomaly, and colors range from blue (cold) to red (warm). The top view shows the annual cycle, while the side view shows time progression.

Stripes: Each stripe represents one year's average anomaly (the mean of all monthly anomalies for that year). No additional smoothing is applied; yearly aggregation naturally reduces noise.

Color scale: Color bounds are set to the 5th and 95th percentile of anomalies to avoid outlier washout, with a neutral zone of approximately ±0.1°C.

7. Data Quality Notes

Frequently Asked Questions

Is Palo Alto, California getting warmer?

Based on 96+ years of NOAA temperature records, Palo Alto has warmed at a rate of approximately 0.32°F per decade. This trend is calculated from monthly temperature anomalies relative to the location's historical baseline period.

What was the warmest year on record in Palo Alto?

The warmest year on record in Palo Alto was 2014, based on average annual temperature anomaly from NOAA station data.

Where does the temperature data for Palo Alto come from?

Data comes from the nClimGrid 5km Grid Point weather station, part of NOAA's Global Historical Climatology Network. This station has recorded 96+ years of temperature observations used to build Palo Alto's climate profile.

How are the climate visualizations for Palo Alto created?

Three visualizations are generated from Palo Alto's NOAA data: a climate spiral showing monthly temperature anomalies as concentric rings (inspired by NASA), warming stripes where each vertical stripe represents one year's temperature anomaly, and a linear trend chart showing the long-term trajectory.

Can I download Palo Alto's temperature data?

Yes. The interactive data table on this page shows every monthly temperature reading in Palo Alto's record. You can filter by decade and download the complete dataset as a CSV file for your own analysis.

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