Climate Change in Millbrae, California

96+ years of recorded temperature data show Millbrae is warming.

Based on our analysis of 96 years of temperature data near Millbrae, 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 +3.7°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.3°F

per decade

Warmest Year

2014

+3.7°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+2.1°F

2020s vs 1930s

Compared to the National Average

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

National: +0.20°F/decade
Millbrae: +0.28°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 Millbrae's long-term warming trend.

Temperature anomaly spiral for Millbrae, California
Climate spiral: monthly temperature anomalies from 96+ years of NOAA records for Millbrae, 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 Millbrae, California
Warming stripes: each stripe is one year of average temperature anomaly for Millbrae, CA.

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.28°F per decade quantifies the rate of change.

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

Temperature by Decade

1930s
-0.80°F
1940s
-0.92°F
1950s
-0.41°F
1960s
-0.46°F
1970s
-0.24°F
1980s
+0.30°F
1990s
+0.55°F
2000s
+0.67°F
2010s
+1.50°F
2020s
+1.36°F

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

Anomaly Scale

-3.1°F Colder Normal +3.4°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 Millbrae, CA. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
0.6 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan47.5°F49.7°F-2.2°NCLIMGRID
1930Feb53.9°F52.2°F+1.7°NCLIMGRID
1930Mar54.3°F53.3°F+1.1°NCLIMGRID
1930Apr56.2°F54.8°F+1.5°NCLIMGRID
1930May53.8°F57.3°F-3.6°NCLIMGRID
1930Jun58.3°F59.9°F-1.5°NCLIMGRID
1930Jul57.6°F61.2°F-3.5°NCLIMGRID
1930Aug59.8°F61.9°F-2.2°NCLIMGRID
1930Sep58.7°F62.5°F-3.7°NCLIMGRID
1930Oct59.4°F59.8°F-0.3°NCLIMGRID
1930Nov54.3°F54.6°F-0.3°NCLIMGRID
1930Dec49.1°F50.0°F-0.9°NCLIMGRID
1931Jan50.4°F49.7°F+0.7°NCLIMGRID
1931Feb54.1°F52.2°F+1.8°NCLIMGRID
1931Mar55.3°F53.3°F+2.0°NCLIMGRID
1931Apr56.6°F54.8°F+1.9°NCLIMGRID
1931May60.6°F57.3°F+3.3°NCLIMGRID
1931Jun59.4°F59.9°F-0.4°NCLIMGRID
1931Jul62.2°F61.2°F+1.1°NCLIMGRID
1931Aug60.7°F61.9°F-1.3°NCLIMGRID
1931Sep60.4°F62.5°F-2.1°NCLIMGRID
1931Oct56.7°F59.8°F-3.0°NCLIMGRID
1931Nov51.7°F54.6°F-2.9°NCLIMGRID
1931Dec47.8°F50.0°F-2.1°NCLIMGRID
1932Jan47.6°F49.7°F-2.1°NCLIMGRID
1932Feb49.0°F52.2°F-3.3°NCLIMGRID
1932Mar54.4°F53.3°F+1.1°NCLIMGRID
1932Apr53.1°F54.8°F-1.6°NCLIMGRID
1932May56.4°F57.3°F-1.0°NCLIMGRID
1932Jun58.1°F59.9°F-1.8°NCLIMGRID
1932Jul59.0°F61.2°F-2.2°NCLIMGRID
1932Aug59.9°F61.9°F-2.1°NCLIMGRID
1932Sep60.9°F62.5°F-1.6°NCLIMGRID
1932Oct58.9°F59.8°F-0.9°NCLIMGRID
1932Nov57.7°F54.6°F+3.1°NCLIMGRID
1932Dec45.5°F50.0°F-4.4°NCLIMGRID
1933Jan45.5°F49.7°F-4.2°NCLIMGRID
1933Feb48.3°F52.2°F-4.0°NCLIMGRID
1933Mar52.6°F53.3°F-0.7°NCLIMGRID
1933Apr53.2°F54.8°F-1.6°NCLIMGRID
1933May52.9°F57.3°F-4.5°NCLIMGRID
1933Jun56.0°F59.9°F-3.8°NCLIMGRID
1933Jul59.6°F61.2°F-1.5°NCLIMGRID
1933Aug59.7°F61.9°F-2.2°NCLIMGRID
1933Sep59.1°F62.5°F-3.4°NCLIMGRID
1933Oct60.6°F59.8°F+0.8°NCLIMGRID
1933Nov57.1°F54.6°F+2.5°NCLIMGRID
1933Dec49.3°F50.0°F-0.7°NCLIMGRID
1934Jan50.5°F49.7°F+0.8°NCLIMGRID
1934Feb53.5°F52.2°F+1.2°NCLIMGRID
1934Mar58.1°F53.3°F+4.8°NCLIMGRID
1934Apr57.0°F54.8°F+2.3°NCLIMGRID
1934May59.1°F57.3°F+1.8°NCLIMGRID
1934Jun59.0°F59.9°F-0.8°NCLIMGRID
1934Jul59.9°F61.2°F-1.2°NCLIMGRID
1934Aug60.2°F61.9°F-1.7°NCLIMGRID
1934Sep60.8°F62.5°F-1.7°NCLIMGRID
1934Oct58.6°F59.8°F-1.2°NCLIMGRID
1934Nov56.0°F54.6°F+1.4°NCLIMGRID
1934Dec51.3°F50.0°F+1.3°NCLIMGRID
1935Jan48.9°F49.7°F-0.8°NCLIMGRID
1935Feb51.3°F52.2°F-0.9°NCLIMGRID
1935Mar49.0°F53.3°F-4.3°NCLIMGRID
1935Apr55.2°F54.8°F+0.5°NCLIMGRID
1935May56.2°F57.3°F-1.1°NCLIMGRID
1935Jun60.2°F59.9°F+0.3°NCLIMGRID
1935Jul59.2°F61.2°F-2.0°NCLIMGRID
1935Aug59.5°F61.9°F-2.4°NCLIMGRID
1935Sep58.8°F62.5°F-3.7°NCLIMGRID
1935Oct57.0°F59.8°F-2.7°NCLIMGRID
1935Nov51.7°F54.6°F-3.0°NCLIMGRID
1935Dec50.8°F50.0°F+0.8°NCLIMGRID
1936Jan52.2°F49.7°F+2.5°NCLIMGRID
1936Feb51.4°F52.2°F-0.9°NCLIMGRID
1936Mar54.1°F53.3°F+0.8°NCLIMGRID
1936Apr55.8°F54.8°F+1.1°NCLIMGRID
1936May59.5°F57.3°F+2.2°NCLIMGRID
1936Jun60.2°F59.9°F+0.4°NCLIMGRID
1936Jul60.6°F61.2°F-0.5°NCLIMGRID
1936Aug60.3°F61.9°F-1.6°NCLIMGRID
1936Sep61.8°F62.5°F-0.7°NCLIMGRID
1936Oct59.9°F59.8°F+0.1°NCLIMGRID
1936Nov54.6°F54.6°F+0.0°NCLIMGRID
1936Dec49.4°F50.0°F-0.6°NCLIMGRID
1937Jan42.4°F49.7°F-7.3°NCLIMGRID
1937Feb48.6°F52.2°F-3.7°NCLIMGRID
1937Mar52.5°F53.3°F-0.7°NCLIMGRID
1937Apr52.9°F54.8°F-1.8°NCLIMGRID
1937May56.3°F57.3°F-1.0°NCLIMGRID
1937Jun60.2°F59.9°F+0.3°NCLIMGRID
1937Jul60.3°F61.2°F-0.9°NCLIMGRID
1937Aug60.3°F61.9°F-1.7°NCLIMGRID
1937Sep60.5°F62.5°F-1.9°NCLIMGRID
1937Oct60.9°F59.8°F+1.1°NCLIMGRID
1937Nov56.0°F54.6°F+1.3°NCLIMGRID
1937Dec52.2°F50.0°F+2.3°NCLIMGRID
1938Jan49.8°F49.7°F+0.1°NCLIMGRID
1938Feb51.2°F52.2°F-1.1°NCLIMGRID
1938Mar50.3°F53.3°F-2.9°NCLIMGRID
1938Apr53.2°F54.8°F-1.5°NCLIMGRID
1938May56.1°F57.3°F-1.3°NCLIMGRID
1938Jun58.2°F59.9°F-1.6°NCLIMGRID
1938Jul59.7°F61.2°F-1.4°NCLIMGRID
1938Aug60.3°F61.9°F-1.6°NCLIMGRID
1938Sep60.7°F62.5°F-1.8°NCLIMGRID
1938Oct58.5°F59.8°F-1.3°NCLIMGRID
1938Nov53.4°F54.6°F-1.2°NCLIMGRID
1938Dec51.9°F50.0°F+1.9°NCLIMGRID
1939Jan49.8°F49.7°F+0.1°NCLIMGRID
1939Feb49.0°F52.2°F-3.2°NCLIMGRID
1939Mar51.3°F53.3°F-2.0°NCLIMGRID
1939Apr55.6°F54.8°F+0.8°NCLIMGRID
1939May57.1°F57.3°F-0.2°NCLIMGRID
1939Jun58.7°F59.9°F-1.2°NCLIMGRID
1939Jul60.0°F61.2°F-1.1°NCLIMGRID
1939Aug60.2°F61.9°F-1.7°NCLIMGRID
1939Sep64.2°F62.5°F+1.7°NCLIMGRID
1939Oct59.6°F59.8°F-0.1°NCLIMGRID
1939Nov55.3°F54.6°F+0.7°NCLIMGRID
1939Dec53.0°F50.0°F+3.0°NCLIMGRID
1940Jan51.5°F49.7°F+1.8°NCLIMGRID
1940Feb53.7°F52.2°F+1.4°NCLIMGRID
1940Mar54.9°F53.3°F+1.6°NCLIMGRID
1940Apr56.2°F54.8°F+1.5°NCLIMGRID
1940May57.3°F57.3°F-0.1°NCLIMGRID
1940Jun59.6°F59.9°F-0.2°NCLIMGRID
1940Jul60.5°F61.2°F-0.7°NCLIMGRID
1940Aug60.3°F61.9°F-1.6°NCLIMGRID
1940Sep62.6°F62.5°F+0.1°NCLIMGRID
1940Oct59.4°F59.8°F-0.4°NCLIMGRID
1940Nov53.6°F54.6°F-1.0°NCLIMGRID
1940Dec52.9°F50.0°F+2.9°NCLIMGRID
1941Jan51.5°F49.7°F+1.8°NCLIMGRID
1941Feb53.2°F52.2°F+1.0°NCLIMGRID
1941Mar55.9°F53.3°F+2.7°NCLIMGRID
1941Apr53.9°F54.8°F-0.8°NCLIMGRID
1941May59.7°F57.3°F+2.3°NCLIMGRID
1941Jun59.2°F59.9°F-0.7°NCLIMGRID
1941Jul60.8°F61.2°F-0.4°NCLIMGRID
1941Aug60.3°F61.9°F-1.6°NCLIMGRID
1941Sep61.3°F62.5°F-1.2°NCLIMGRID
1941Oct57.5°F59.8°F-2.3°NCLIMGRID
1941Nov55.7°F54.6°F+1.1°NCLIMGRID
1941Dec51.3°F50.0°F+1.3°NCLIMGRID
1942Jan49.3°F49.7°F-0.4°NCLIMGRID
1942Feb50.5°F52.2°F-1.7°NCLIMGRID
1942Mar51.9°F53.3°F-1.4°NCLIMGRID
1942Apr53.5°F54.8°F-1.2°NCLIMGRID
1942May55.7°F57.3°F-1.6°NCLIMGRID
1942Jun58.6°F59.9°F-1.3°NCLIMGRID
1942Jul60.7°F61.2°F-0.4°NCLIMGRID
1942Aug59.6°F61.9°F-2.3°NCLIMGRID
1942Sep59.5°F62.5°F-3.0°NCLIMGRID
1942Oct58.5°F59.8°F-1.2°NCLIMGRID
1942Nov53.5°F54.6°F-1.2°NCLIMGRID
1942Dec50.1°F50.0°F+0.1°NCLIMGRID
1943Jan49.3°F49.7°F-0.4°NCLIMGRID
1943Feb52.6°F52.2°F+0.4°NCLIMGRID
1943Mar53.7°F53.3°F+0.4°NCLIMGRID
1943Apr54.8°F54.8°F+0.1°NCLIMGRID
1943May58.0°F57.3°F+0.6°NCLIMGRID
1943Jun57.5°F59.9°F-2.4°NCLIMGRID
1943Jul59.8°F61.2°F-1.3°NCLIMGRID
1943Aug59.9°F61.9°F-2.0°NCLIMGRID
1943Sep62.7°F62.5°F+0.2°NCLIMGRID
1943Oct58.9°F59.8°F-0.9°NCLIMGRID
1943Nov55.9°F54.6°F+1.3°NCLIMGRID
1943Dec51.2°F50.0°F+1.2°NCLIMGRID
1944Jan49.8°F49.7°F+0.1°NCLIMGRID
1944Feb49.2°F52.2°F-3.0°NCLIMGRID
1944Mar53.2°F53.3°F-0.1°NCLIMGRID
1944Apr51.8°F54.8°F-2.9°NCLIMGRID
1944May56.4°F57.3°F-0.9°NCLIMGRID
1944Jun57.8°F59.9°F-2.0°NCLIMGRID
1944Jul58.6°F61.2°F-2.6°NCLIMGRID
1944Aug59.8°F61.9°F-2.2°NCLIMGRID
1944Sep60.2°F62.5°F-2.3°NCLIMGRID
1944Oct59.4°F59.8°F-0.4°NCLIMGRID
1944Nov52.8°F54.6°F-1.8°NCLIMGRID
1944Dec51.8°F50.0°F+1.8°NCLIMGRID
1945Jan47.8°F49.7°F-1.9°NCLIMGRID
1945Feb51.3°F52.2°F-1.0°NCLIMGRID
1945Mar49.5°F53.3°F-3.8°NCLIMGRID
1945Apr54.0°F54.8°F-0.7°NCLIMGRID
1945May55.1°F57.3°F-2.2°NCLIMGRID
1945Jun60.7°F59.9°F+0.8°NCLIMGRID
1945Jul60.9°F61.2°F-0.3°NCLIMGRID
1945Aug58.9°F61.9°F-3.0°NCLIMGRID
1945Sep61.5°F62.5°F-1.0°NCLIMGRID
1945Oct59.5°F59.8°F-0.3°NCLIMGRID
1945Nov53.7°F54.6°F-0.9°NCLIMGRID
1945Dec51.2°F50.0°F+1.2°NCLIMGRID
1946Jan49.1°F49.7°F-0.6°NCLIMGRID
1946Feb48.4°F52.2°F-3.8°NCLIMGRID
1946Mar51.1°F53.3°F-2.1°NCLIMGRID
1946Apr53.9°F54.8°F-0.9°NCLIMGRID
1946May55.7°F57.3°F-1.7°NCLIMGRID
1946Jun58.4°F59.9°F-1.5°NCLIMGRID
1946Jul60.9°F61.2°F-0.3°NCLIMGRID
1946Aug59.1°F61.9°F-2.8°NCLIMGRID
1946Sep61.6°F62.5°F-0.9°NCLIMGRID
1946Oct57.7°F59.8°F-2.1°NCLIMGRID
1946Nov51.7°F54.6°F-2.9°NCLIMGRID
1946Dec49.7°F50.0°F-0.2°NCLIMGRID
1947Jan45.5°F49.7°F-4.2°NCLIMGRID
1947Feb51.9°F52.2°F-0.4°NCLIMGRID
1947Mar54.5°F53.3°F+1.2°NCLIMGRID
1947Apr57.0°F54.8°F+2.3°NCLIMGRID
1947May58.2°F57.3°F+0.9°NCLIMGRID
1947Jun61.4°F59.9°F+1.5°NCLIMGRID
1947Jul60.3°F61.2°F-0.9°NCLIMGRID
1947Aug61.8°F61.9°F-0.1°NCLIMGRID
1947Sep61.1°F62.5°F-1.4°NCLIMGRID
1947Oct59.6°F59.8°F-0.1°NCLIMGRID
1947Nov51.5°F54.6°F-3.1°NCLIMGRID
1947Dec48.9°F50.0°F-1.1°NCLIMGRID
1948Jan51.8°F49.7°F+2.1°NCLIMGRID
1948Feb48.7°F52.2°F-3.5°NCLIMGRID
1948Mar49.9°F53.3°F-3.4°NCLIMGRID
1948Apr52.6°F54.8°F-2.1°NCLIMGRID
1948May54.7°F57.3°F-2.7°NCLIMGRID
1948Jun59.0°F59.9°F-0.9°NCLIMGRID
1948Jul59.9°F61.2°F-1.3°NCLIMGRID
1948Aug60.4°F61.9°F-1.5°NCLIMGRID
1948Sep59.0°F62.5°F-3.5°NCLIMGRID
1948Oct58.6°F59.8°F-1.1°NCLIMGRID
1948Nov53.3°F54.6°F-1.3°NCLIMGRID
1948Dec46.2°F50.0°F-3.8°NCLIMGRID
1949Jan42.4°F49.7°F-7.3°NCLIMGRID
1949Feb46.7°F52.2°F-5.5°NCLIMGRID
1949Mar52.1°F53.3°F-1.2°NCLIMGRID
1949Apr54.7°F54.8°F-0.1°NCLIMGRID
1949May56.6°F57.3°F-0.8°NCLIMGRID
1949Jun59.6°F59.9°F-0.3°NCLIMGRID
1949Jul58.6°F61.2°F-2.5°NCLIMGRID
1949Aug59.9°F61.9°F-2.0°NCLIMGRID
1949Sep61.8°F62.5°F-0.7°NCLIMGRID
1949Oct56.5°F59.8°F-3.3°NCLIMGRID
1949Nov56.8°F54.6°F+2.2°NCLIMGRID
1949Dec48.1°F50.0°F-1.9°NCLIMGRID
1950Jan45.6°F49.7°F-4.1°NCLIMGRID
1950Feb50.3°F52.2°F-1.9°NCLIMGRID
1950Mar51.5°F53.3°F-1.8°NCLIMGRID
1950Apr55.0°F54.8°F+0.3°NCLIMGRID
1950May55.9°F57.3°F-1.4°NCLIMGRID
1950Jun57.5°F59.9°F-2.4°NCLIMGRID
1950Jul59.9°F61.2°F-1.3°NCLIMGRID
1950Aug61.6°F61.9°F-0.4°NCLIMGRID
1950Sep62.4°F62.5°F-0.1°NCLIMGRID
1950Oct59.8°F59.8°F+0.1°NCLIMGRID
1950Nov59.4°F54.6°F+4.8°NCLIMGRID
1950Dec53.5°F50.0°F+3.5°NCLIMGRID
1951Jan49.7°F49.7°F+0.0°NCLIMGRID
1951Feb51.0°F52.2°F-1.2°NCLIMGRID
1951Mar52.1°F53.3°F-1.2°NCLIMGRID
1951Apr52.2°F54.8°F-2.6°NCLIMGRID
1951May57.5°F57.3°F+0.2°NCLIMGRID
1951Jun57.7°F59.9°F-2.2°NCLIMGRID
1951Jul58.1°F61.2°F-3.1°NCLIMGRID
1951Aug59.6°F61.9°F-2.4°NCLIMGRID
1951Sep60.9°F62.5°F-1.6°NCLIMGRID
1951Oct59.7°F59.8°F-0.1°NCLIMGRID
1951Nov54.8°F54.6°F+0.2°NCLIMGRID
1951Dec49.4°F50.0°F-0.6°NCLIMGRID
1952Jan47.4°F49.7°F-2.3°NCLIMGRID
1952Feb51.4°F52.2°F-0.8°NCLIMGRID
1952Mar50.7°F53.3°F-2.5°NCLIMGRID
1952Apr54.9°F54.8°F+0.2°NCLIMGRID
1952May57.2°F57.3°F-0.2°NCLIMGRID
1952Jun56.6°F59.9°F-3.3°NCLIMGRID
1952Jul61.2°F61.2°F+0.0°NCLIMGRID
1952Aug59.3°F61.9°F-2.6°NCLIMGRID
1952Sep61.8°F62.5°F-0.7°NCLIMGRID
1952Oct58.5°F59.8°F-1.3°NCLIMGRID
1952Nov52.9°F54.6°F-1.7°NCLIMGRID
1952Dec51.6°F50.0°F+1.6°NCLIMGRID
1953Jan54.2°F49.7°F+4.5°NCLIMGRID
1953Feb51.5°F52.2°F-0.7°NCLIMGRID
1953Mar51.3°F53.3°F-2.0°NCLIMGRID
1953Apr52.3°F54.8°F-2.5°NCLIMGRID
1953May55.3°F57.3°F-2.0°NCLIMGRID
1953Jun57.8°F59.9°F-2.0°NCLIMGRID
1953Jul59.2°F61.2°F-2.0°NCLIMGRID
1953Aug60.0°F61.9°F-2.0°NCLIMGRID
1953Sep62.9°F62.5°F+0.4°NCLIMGRID
1953Oct58.7°F59.8°F-1.0°NCLIMGRID
1953Nov55.2°F54.6°F+0.6°NCLIMGRID
1953Dec52.3°F50.0°F+2.3°NCLIMGRID
1954Jan49.9°F49.7°F+0.3°NCLIMGRID
1954Feb52.4°F52.2°F+0.1°NCLIMGRID
1954Mar50.1°F53.3°F-3.1°NCLIMGRID
1954Apr56.1°F54.8°F+1.3°NCLIMGRID
1954May56.4°F57.3°F-0.9°NCLIMGRID
1954Jun58.5°F59.9°F-1.4°NCLIMGRID
1954Jul60.7°F61.2°F-0.5°NCLIMGRID
1954Aug58.9°F61.9°F-3.1°NCLIMGRID
1954Sep61.0°F62.5°F-1.5°NCLIMGRID
1954Oct58.7°F59.8°F-1.1°NCLIMGRID
1954Nov54.7°F54.6°F+0.1°NCLIMGRID
1954Dec49.4°F50.0°F-0.6°NCLIMGRID
1955Jan46.6°F49.7°F-3.1°NCLIMGRID
1955Feb50.1°F52.2°F-2.2°NCLIMGRID
1955Mar52.8°F53.3°F-0.5°NCLIMGRID
1955Apr51.0°F54.8°F-3.8°NCLIMGRID
1955May56.7°F57.3°F-0.7°NCLIMGRID
1955Jun57.9°F59.9°F-2.0°NCLIMGRID
1955Jul58.0°F61.2°F-3.1°NCLIMGRID
1955Aug58.1°F61.9°F-3.9°NCLIMGRID
1955Sep59.3°F62.5°F-3.2°NCLIMGRID
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1984Apr54.3°F54.8°F-0.5°NCLIMGRID
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1985Apr57.3°F54.8°F+2.6°NCLIMGRID
1985May56.7°F57.3°F-0.6°NCLIMGRID
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1986Jan53.5°F49.7°F+3.8°NCLIMGRID
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1986Apr55.0°F54.8°F+0.3°NCLIMGRID
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1986Dec50.0°F50.0°F+0.0°NCLIMGRID
1987Jan48.7°F49.7°F-1.0°NCLIMGRID
1987Feb52.8°F52.2°F+0.6°NCLIMGRID
1987Mar53.7°F53.3°F+0.5°NCLIMGRID
1987Apr57.8°F54.8°F+3.0°NCLIMGRID
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1987Jun60.0°F59.9°F+0.1°NCLIMGRID
1987Jul60.1°F61.2°F-1.1°NCLIMGRID
1987Aug62.4°F61.9°F+0.5°NCLIMGRID
1987Sep61.7°F62.5°F-0.8°NCLIMGRID
1987Oct62.0°F59.8°F+2.2°NCLIMGRID
1987Nov55.5°F54.6°F+0.9°NCLIMGRID
1987Dec49.6°F50.0°F-0.3°NCLIMGRID
1988Jan50.4°F49.7°F+0.8°NCLIMGRID
1988Feb54.3°F52.2°F+2.1°NCLIMGRID
1988Mar55.2°F53.3°F+1.9°NCLIMGRID
1988Apr56.4°F54.8°F+1.7°NCLIMGRID
1988May57.2°F57.3°F-0.1°NCLIMGRID
1988Jun60.2°F59.9°F+0.4°NCLIMGRID
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1988Aug62.5°F61.9°F+0.6°NCLIMGRID
1988Sep60.6°F62.5°F-1.9°NCLIMGRID
1988Oct59.2°F59.8°F-0.6°NCLIMGRID
1988Nov54.5°F54.6°F-0.1°NCLIMGRID
1988Dec49.7°F50.0°F-0.3°NCLIMGRID
1989Jan48.0°F49.7°F-1.6°NCLIMGRID
1989Feb47.6°F52.2°F-4.7°NCLIMGRID
1989Mar53.5°F53.3°F+0.3°NCLIMGRID
1989Apr58.6°F54.8°F+3.9°NCLIMGRID
1989May57.7°F57.3°F+0.3°NCLIMGRID
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1989Aug61.9°F61.9°F+0.0°NCLIMGRID
1989Sep60.3°F62.5°F-2.2°NCLIMGRID
1989Oct59.3°F59.8°F-0.5°NCLIMGRID
1989Nov55.6°F54.6°F+1.0°NCLIMGRID
1989Dec50.3°F50.0°F+0.3°NCLIMGRID
1990Jan49.7°F49.7°F+0.1°NCLIMGRID
1990Feb48.5°F52.2°F-3.7°NCLIMGRID
1990Mar52.6°F53.3°F-0.6°NCLIMGRID
1990Apr57.1°F54.8°F+2.4°NCLIMGRID
1990May57.5°F57.3°F+0.2°NCLIMGRID
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1990Jul62.3°F61.2°F+1.1°NCLIMGRID
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1990Nov54.4°F54.6°F-0.2°NCLIMGRID
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1991Jan49.7°F49.7°F+0.1°NCLIMGRID
1991Feb54.1°F52.2°F+1.9°NCLIMGRID
1991Mar50.7°F53.3°F-2.6°NCLIMGRID
1991Apr53.9°F54.8°F-0.9°NCLIMGRID
1991May55.0°F57.3°F-2.4°NCLIMGRID
1991Jun57.3°F59.9°F-2.6°NCLIMGRID
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1992Jan48.7°F49.7°F-1.0°NCLIMGRID
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1992Mar56.3°F53.3°F+3.0°NCLIMGRID
1992Apr59.2°F54.8°F+4.4°NCLIMGRID
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1993Nov55.1°F54.6°F+0.5°NCLIMGRID
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1994Apr55.5°F54.8°F+0.8°NCLIMGRID
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1996Dec53.3°F50.0°F+3.3°NCLIMGRID
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1997Feb53.1°F52.2°F+0.9°NCLIMGRID
1997Mar55.5°F53.3°F+2.2°NCLIMGRID
1997Apr56.5°F54.8°F+1.8°NCLIMGRID
1997May62.2°F57.3°F+4.8°NCLIMGRID
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1997Jul62.3°F61.2°F+1.1°NCLIMGRID
1997Aug64.5°F61.9°F+2.6°NCLIMGRID
1997Sep65.8°F62.5°F+3.3°NCLIMGRID
1997Oct60.0°F59.8°F+0.3°NCLIMGRID
1997Nov57.2°F54.6°F+2.6°NCLIMGRID
1997Dec50.8°F50.0°F+0.8°NCLIMGRID
1998Jan52.4°F49.7°F+2.7°NCLIMGRID
1998Feb51.5°F52.2°F-0.8°NCLIMGRID
1998Mar54.5°F53.3°F+1.2°NCLIMGRID
1998Apr54.4°F54.8°F-0.3°NCLIMGRID
1998May56.6°F57.3°F-0.7°NCLIMGRID
1998Jun59.2°F59.9°F-0.7°NCLIMGRID
1998Jul60.9°F61.2°F-0.3°NCLIMGRID
1998Aug63.2°F61.9°F+1.2°NCLIMGRID
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1998Oct58.7°F59.8°F-1.1°NCLIMGRID
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1999Jan50.1°F49.7°F+0.4°NCLIMGRID
1999Feb49.9°F52.2°F-2.4°NCLIMGRID
1999Mar50.1°F53.3°F-3.1°NCLIMGRID
1999Apr53.5°F54.8°F-1.3°NCLIMGRID
1999May54.8°F57.3°F-2.6°NCLIMGRID
1999Jun58.8°F59.9°F-1.1°NCLIMGRID
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1999Sep62.0°F62.5°F-0.5°NCLIMGRID
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1999Nov56.2°F54.6°F+1.5°NCLIMGRID
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2000Jan52.2°F49.7°F+2.5°NCLIMGRID
2000Feb52.9°F52.2°F+0.7°NCLIMGRID
2000Mar53.8°F53.3°F+0.5°NCLIMGRID
2000Apr57.3°F54.8°F+2.6°NCLIMGRID
2000May58.6°F57.3°F+1.2°NCLIMGRID
2000Jun60.9°F59.9°F+1.0°NCLIMGRID
2000Jul59.4°F61.2°F-1.8°NCLIMGRID
2000Aug61.3°F61.9°F-0.6°NCLIMGRID
2000Sep63.9°F62.5°F+1.4°NCLIMGRID
2000Oct58.4°F59.8°F-1.4°NCLIMGRID
2000Nov52.0°F54.6°F-2.6°NCLIMGRID
2000Dec52.1°F50.0°F+2.1°NCLIMGRID
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2001Feb50.6°F52.2°F-1.6°NCLIMGRID
2001Mar55.4°F53.3°F+2.1°NCLIMGRID
2001Apr52.5°F54.8°F-2.2°NCLIMGRID
2001May62.2°F57.3°F+4.9°NCLIMGRID
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2001Dec51.5°F50.0°F+1.5°NCLIMGRID
2002Jan49.2°F49.7°F-0.5°NCLIMGRID
2002Feb53.6°F52.2°F+1.4°NCLIMGRID
2002Mar53.2°F53.3°F-0.1°NCLIMGRID
2002Apr55.8°F54.8°F+1.1°NCLIMGRID
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2002Jun60.0°F59.9°F+0.1°NCLIMGRID
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2002Sep63.1°F62.5°F+0.6°NCLIMGRID
2002Oct59.3°F59.8°F-0.5°NCLIMGRID
2002Nov57.4°F54.6°F+2.8°NCLIMGRID
2002Dec52.1°F50.0°F+2.1°NCLIMGRID
2003Jan54.4°F49.7°F+4.8°NCLIMGRID
2003Feb52.6°F52.2°F+0.4°NCLIMGRID
2003Mar55.3°F53.3°F+2.1°NCLIMGRID
2003Apr53.2°F54.8°F-1.5°NCLIMGRID
2003May57.7°F57.3°F+0.4°NCLIMGRID
2003Jun61.2°F59.9°F+1.3°NCLIMGRID
2003Jul62.6°F61.2°F+1.4°NCLIMGRID
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2003Sep65.1°F62.5°F+2.6°NCLIMGRID
2003Oct62.3°F59.8°F+2.5°NCLIMGRID
2003Nov53.5°F54.6°F-1.1°NCLIMGRID
2003Dec51.6°F50.0°F+1.6°NCLIMGRID
2004Jan50.4°F49.7°F+0.7°NCLIMGRID
2004Feb51.7°F52.2°F-0.6°NCLIMGRID
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2004Apr58.2°F54.8°F+3.4°NCLIMGRID
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2004Nov54.0°F54.6°F-0.6°NCLIMGRID
2004Dec52.0°F50.0°F+2.0°NCLIMGRID
2005Jan49.8°F49.7°F+0.1°NCLIMGRID
2005Feb54.6°F52.2°F+2.4°NCLIMGRID
2005Mar56.3°F53.3°F+3.0°NCLIMGRID
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2005Oct59.6°F59.8°F-0.2°NCLIMGRID
2005Nov57.2°F54.6°F+2.6°NCLIMGRID
2005Dec53.2°F50.0°F+3.2°NCLIMGRID
2006Jan51.3°F49.7°F+1.6°NCLIMGRID
2006Feb53.3°F52.2°F+1.1°NCLIMGRID
2006Mar49.7°F53.3°F-3.6°NCLIMGRID
2006Apr54.4°F54.8°F-0.3°NCLIMGRID
2006May58.6°F57.3°F+1.2°NCLIMGRID
2006Jun62.0°F59.9°F+2.2°NCLIMGRID
2006Jul64.1°F61.2°F+2.9°NCLIMGRID
2006Aug61.6°F61.9°F-0.3°NCLIMGRID
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2006Oct59.6°F59.8°F-0.1°NCLIMGRID
2006Nov55.1°F54.6°F+0.5°NCLIMGRID
2006Dec51.2°F50.0°F+1.2°NCLIMGRID
2007Jan49.0°F49.7°F-0.7°NCLIMGRID
2007Feb52.2°F52.2°F-0.1°NCLIMGRID
2007Mar55.2°F53.3°F+1.9°NCLIMGRID
2007Apr54.8°F54.8°F+0.0°NCLIMGRID
2007May57.7°F57.3°F+0.3°NCLIMGRID
2007Jun59.8°F59.9°F+0.0°NCLIMGRID
2007Jul62.0°F61.2°F+0.9°NCLIMGRID
2007Aug62.4°F61.9°F+0.5°NCLIMGRID
2007Sep62.2°F62.5°F-0.3°NCLIMGRID
2007Oct58.5°F59.8°F-1.3°NCLIMGRID
2007Nov56.4°F54.6°F+1.8°NCLIMGRID
2007Dec49.4°F50.0°F-0.5°NCLIMGRID
2008Jan48.4°F49.7°F-1.3°NCLIMGRID
2008Feb51.0°F52.2°F-1.2°NCLIMGRID
2008Mar53.3°F53.3°F+0.0°NCLIMGRID
2008Apr54.8°F54.8°F+0.0°NCLIMGRID
2008May57.8°F57.3°F+0.5°NCLIMGRID
2008Jun60.3°F59.9°F+0.4°NCLIMGRID
2008Jul61.6°F61.2°F+0.4°NCLIMGRID
2008Aug62.4°F61.9°F+0.5°NCLIMGRID
2008Sep62.9°F62.5°F+0.4°NCLIMGRID
2008Oct61.3°F59.8°F+1.6°NCLIMGRID
2008Nov57.6°F54.6°F+3.0°NCLIMGRID
2008Dec49.4°F50.0°F-0.6°NCLIMGRID
2009Jan53.2°F49.7°F+3.5°NCLIMGRID
2009Feb52.0°F52.2°F-0.3°NCLIMGRID
2009Mar52.7°F53.3°F-0.6°NCLIMGRID
2009Apr55.6°F54.8°F+0.8°NCLIMGRID
2009May57.9°F57.3°F+0.5°NCLIMGRID
2009Jun61.0°F59.9°F+1.1°NCLIMGRID
2009Jul60.4°F61.2°F-0.8°NCLIMGRID
2009Aug63.3°F61.9°F+1.4°NCLIMGRID
2009Sep63.4°F62.5°F+0.9°NCLIMGRID
2009Oct59.0°F59.8°F-0.8°NCLIMGRID
2009Nov55.1°F54.6°F+0.4°NCLIMGRID
2009Dec49.2°F50.0°F-0.7°NCLIMGRID
2010Jan51.6°F49.7°F+1.9°NCLIMGRID
2010Feb53.1°F52.2°F+0.9°NCLIMGRID
2010Mar54.2°F53.3°F+0.9°NCLIMGRID
2010Apr54.1°F54.8°F-0.7°NCLIMGRID
2010May55.4°F57.3°F-2.0°NCLIMGRID
2010Jun59.6°F59.9°F-0.3°NCLIMGRID
2010Jul59.9°F61.2°F-1.3°NCLIMGRID
2010Aug60.4°F61.9°F-1.6°NCLIMGRID
2010Sep62.8°F62.5°F+0.3°NCLIMGRID
2010Oct60.0°F59.8°F+0.3°NCLIMGRID
2010Nov54.9°F54.6°F+0.3°NCLIMGRID
2010Dec52.3°F50.0°F+2.3°NCLIMGRID
2011Jan52.1°F49.7°F+2.4°NCLIMGRID
2011Feb50.9°F52.2°F-1.3°NCLIMGRID
2011Mar53.6°F53.3°F+0.3°NCLIMGRID
2011Apr54.6°F54.8°F-0.2°NCLIMGRID
2011May55.5°F57.3°F-1.8°NCLIMGRID
2011Jun58.7°F59.9°F-1.1°NCLIMGRID
2011Jul60.8°F61.2°F-0.4°NCLIMGRID
2011Aug60.5°F61.9°F-1.4°NCLIMGRID
2011Sep62.7°F62.5°F+0.2°NCLIMGRID
2011Oct62.0°F59.8°F+2.3°NCLIMGRID
2011Nov53.7°F54.6°F-0.9°NCLIMGRID
2011Dec50.5°F50.0°F+0.5°NCLIMGRID
2012Jan51.6°F49.7°F+1.9°NCLIMGRID
2012Feb52.3°F52.2°F+0.1°NCLIMGRID
2012Mar52.3°F53.3°F-0.9°NCLIMGRID
2012Apr56.0°F54.8°F+1.3°NCLIMGRID
2012May57.3°F57.3°F+0.0°NCLIMGRID
2012Jun59.8°F59.9°F-0.1°NCLIMGRID
2012Jul60.8°F61.2°F-0.4°NCLIMGRID
2012Aug60.6°F61.9°F-1.3°NCLIMGRID
2012Sep59.3°F62.5°F-3.2°NCLIMGRID
2012Oct61.6°F59.8°F+1.9°NCLIMGRID
2012Nov57.4°F54.6°F+2.8°NCLIMGRID
2012Dec51.4°F50.0°F+1.4°NCLIMGRID
2013Jan49.4°F49.7°F-0.3°NCLIMGRID
2013Feb50.6°F52.2°F-1.7°NCLIMGRID
2013Mar54.6°F53.3°F+1.3°NCLIMGRID
2013Apr58.0°F54.8°F+3.2°NCLIMGRID
2013May59.4°F57.3°F+2.0°NCLIMGRID
2013Jun61.4°F59.9°F+1.6°NCLIMGRID
2013Jul61.6°F61.2°F+0.4°NCLIMGRID
2013Aug63.1°F61.9°F+1.2°NCLIMGRID
2013Sep63.5°F62.5°F+1.0°NCLIMGRID
2013Oct58.9°F59.8°F-0.8°NCLIMGRID
2013Nov56.1°F54.6°F+1.5°NCLIMGRID
2013Dec50.0°F50.0°F+0.0°NCLIMGRID
2014Jan54.8°F49.7°F+5.1°NCLIMGRID
2014Feb53.9°F52.2°F+1.7°NCLIMGRID
2014Mar58.0°F53.3°F+4.7°NCLIMGRID
2014Apr58.1°F54.8°F+3.4°NCLIMGRID
2014May61.3°F57.3°F+4.0°NCLIMGRID
2014Jun61.4°F59.9°F+1.6°NCLIMGRID
2014Jul64.6°F61.2°F+3.4°NCLIMGRID
2014Aug64.9°F61.9°F+3.0°NCLIMGRID
2014Sep65.7°F62.5°F+3.2°NCLIMGRID
2014Oct63.9°F59.8°F+4.1°NCLIMGRID
2014Nov58.6°F54.6°F+4.0°NCLIMGRID
2014Dec56.2°F50.0°F+6.2°NCLIMGRID
2015Jan54.3°F49.7°F+4.6°NCLIMGRID
2015Feb58.0°F52.2°F+5.8°NCLIMGRID
2015Mar58.7°F53.3°F+5.4°NCLIMGRID
2015Apr56.8°F54.8°F+2.0°NCLIMGRID
2015May57.3°F57.3°F+0.0°NCLIMGRID
2015Jun62.0°F59.9°F+2.1°NCLIMGRID
2015Jul64.6°F61.2°F+3.4°NCLIMGRID
2015Aug66.4°F61.9°F+4.5°NCLIMGRID
2015Sep65.5°F62.5°F+3.0°NCLIMGRID
2015Oct64.2°F59.8°F+4.5°NCLIMGRID
2015Nov53.9°F54.6°F-0.8°NCLIMGRID
2015Dec50.3°F50.0°F+0.3°NCLIMGRID
2016Jan53.1°F49.7°F+3.4°NCLIMGRID
2016Feb57.0°F52.2°F+4.7°NCLIMGRID
2016Mar56.5°F53.3°F+3.2°NCLIMGRID
2016Apr58.9°F54.8°F+4.1°NCLIMGRID
2016May59.8°F57.3°F+2.4°NCLIMGRID
2016Jun61.6°F59.9°F+1.8°NCLIMGRID
2016Jul60.9°F61.2°F-0.3°NCLIMGRID
2016Aug61.8°F61.9°F-0.1°NCLIMGRID
2016Sep62.5°F62.5°F+0.1°NCLIMGRID
2016Oct61.2°F59.8°F+1.4°NCLIMGRID
2016Nov57.4°F54.6°F+2.8°NCLIMGRID
2016Dec50.5°F50.0°F+0.5°NCLIMGRID
2017Jan50.4°F49.7°F+0.7°NCLIMGRID
2017Feb53.9°F52.2°F+1.6°NCLIMGRID
2017Mar56.4°F53.3°F+3.1°NCLIMGRID
2017Apr57.1°F54.8°F+2.4°NCLIMGRID
2017May58.8°F57.3°F+1.5°NCLIMGRID
2017Jun61.5°F59.9°F+1.7°NCLIMGRID
2017Jul62.1°F61.2°F+0.9°NCLIMGRID
2017Aug63.8°F61.9°F+1.9°NCLIMGRID
2017Sep67.3°F62.5°F+4.8°NCLIMGRID
2017Oct62.0°F59.8°F+2.2°NCLIMGRID
2017Nov57.1°F54.6°F+2.5°NCLIMGRID
2017Dec52.4°F50.0°F+2.4°NCLIMGRID
2018Jan53.7°F49.7°F+4.1°NCLIMGRID
2018Feb53.6°F52.2°F+1.3°NCLIMGRID
2018Mar54.0°F53.3°F+0.7°NCLIMGRID
2018Apr56.5°F54.8°F+1.7°NCLIMGRID
2018May58.5°F57.3°F+1.1°NCLIMGRID
2018Jun60.7°F59.9°F+0.9°NCLIMGRID
2018Jul62.5°F61.2°F+1.3°NCLIMGRID
2018Aug61.6°F61.9°F-0.3°NCLIMGRID
2018Sep60.8°F62.5°F-1.7°NCLIMGRID
2018Oct61.4°F59.8°F+1.6°NCLIMGRID
2018Nov56.6°F54.6°F+2.0°NCLIMGRID
2018Dec52.6°F50.0°F+2.6°NCLIMGRID
2019Jan54.2°F49.7°F+4.5°NCLIMGRID
2019Feb49.4°F52.2°F-2.8°NCLIMGRID
2019Mar53.8°F53.3°F+0.6°NCLIMGRID
2019Apr57.9°F54.8°F+3.2°NCLIMGRID
2019May57.4°F57.3°F+0.0°NCLIMGRID
2019Jun63.2°F59.9°F+3.3°NCLIMGRID
2019Jul62.4°F61.2°F+1.2°NCLIMGRID
2019Aug65.9°F61.9°F+4.0°NCLIMGRID
2019Sep65.2°F62.5°F+2.8°NCLIMGRID
2019Oct61.8°F59.8°F+2.0°NCLIMGRID
2019Nov55.7°F54.6°F+1.1°NCLIMGRID
2019Dec53.2°F50.0°F+3.2°NCLIMGRID
2020Jan51.7°F49.7°F+2.0°NCLIMGRID
2020Feb55.1°F52.2°F+2.9°NCLIMGRID
2020Mar53.8°F53.3°F+0.5°NCLIMGRID
2020Apr56.8°F54.8°F+2.1°NCLIMGRID
2020May60.8°F57.3°F+3.5°NCLIMGRID
2020Jun62.8°F59.9°F+2.9°NCLIMGRID
2020Jul62.1°F61.2°F+0.9°NCLIMGRID
2020Aug65.8°F61.9°F+3.9°NCLIMGRID
2020Sep66.9°F62.5°F+4.4°NCLIMGRID
2020Oct65.8°F59.8°F+6.0°NCLIMGRID
2020Nov55.0°F54.6°F+0.4°NCLIMGRID
2020Dec52.2°F50.0°F+2.2°NCLIMGRID
2021Jan52.5°F49.7°F+2.8°NCLIMGRID
2021Feb53.4°F52.2°F+1.1°NCLIMGRID
2021Mar52.8°F53.3°F-0.4°NCLIMGRID
2021Apr55.7°F54.8°F+0.9°NCLIMGRID
2021May57.8°F57.3°F+0.4°NCLIMGRID
2021Jun62.0°F59.9°F+2.1°NCLIMGRID
2021Jul62.0°F61.2°F+0.8°NCLIMGRID
2021Aug63.4°F61.9°F+1.4°NCLIMGRID
2021Sep62.9°F62.5°F+0.4°NCLIMGRID
2021Oct59.8°F59.8°F+0.0°NCLIMGRID
2021Nov57.8°F54.6°F+3.2°NCLIMGRID
2021Dec50.1°F50.0°F+0.2°NCLIMGRID
2022Jan52.4°F49.7°F+2.8°NCLIMGRID
2022Feb53.4°F52.2°F+1.2°NCLIMGRID
2022Mar54.5°F53.3°F+1.2°NCLIMGRID
2022Apr55.6°F54.8°F+0.8°NCLIMGRID
2022May58.0°F57.3°F+0.6°NCLIMGRID
2022Jun61.8°F59.9°F+2.0°NCLIMGRID
2022Jul61.1°F61.2°F-0.1°NCLIMGRID
2022Aug64.2°F61.9°F+2.3°NCLIMGRID
2022Sep65.4°F62.5°F+2.9°NCLIMGRID
2022Oct59.4°F59.8°F-0.3°NCLIMGRID
2022Nov52.0°F54.6°F-2.6°NCLIMGRID
2022Dec49.4°F50.0°F-0.6°NCLIMGRID
2023Jan51.6°F49.7°F+1.9°NCLIMGRID
2023Feb48.7°F52.2°F-3.5°NCLIMGRID
2023Mar50.0°F53.3°F-3.3°NCLIMGRID
2023Apr53.9°F54.8°F-0.8°NCLIMGRID
2023May57.0°F57.3°F-0.3°NCLIMGRID
2023Jun58.8°F59.9°F-1.0°NCLIMGRID
2023Jul60.9°F61.2°F-0.2°NCLIMGRID
2023Aug64.4°F61.9°F+2.5°NCLIMGRID
2023Sep62.7°F62.5°F+0.2°NCLIMGRID
2023Oct62.2°F59.8°F+2.5°NCLIMGRID
2023Nov57.3°F54.6°F+2.7°NCLIMGRID
2023Dec54.1°F50.0°F+4.1°NCLIMGRID
2024Jan53.7°F49.7°F+4.0°NCLIMGRID
2024Feb53.4°F52.2°F+1.1°NCLIMGRID
2024Mar54.6°F53.3°F+1.4°NCLIMGRID
2024Apr55.9°F54.8°F+1.1°NCLIMGRID
2024May58.4°F57.3°F+1.1°NCLIMGRID
2024Jun60.5°F59.9°F+0.6°NCLIMGRID
2024Jul64.6°F61.2°F+3.4°NCLIMGRID
2024Aug62.8°F61.9°F+0.8°NCLIMGRID
2024Sep62.3°F62.5°F-0.2°NCLIMGRID
2024Oct63.6°F59.8°F+3.8°NCLIMGRID
2024Nov54.1°F54.6°F-0.5°NCLIMGRID
2024Dec53.5°F50.0°F+3.5°NCLIMGRID
2025Jan51.3°F49.7°F+1.7°NCLIMGRID
2025Feb52.6°F52.2°F+0.3°NCLIMGRID
2025Mar53.6°F53.3°F+0.3°NCLIMGRID
2025Apr55.1°F54.8°F+0.3°NCLIMGRID
2025May58.3°F57.3°F+0.9°NCLIMGRID
2025Jun58.7°F59.9°F-1.2°NCLIMGRID
2025Jul60.4°F61.2°F-0.8°NCLIMGRID
2025Aug64.3°F61.9°F+2.3°NCLIMGRID
2025Sep65.0°F62.5°F+2.5°NCLIMGRID
2025Oct60.7°F59.8°F+0.9°NCLIMGRID
2025Nov57.2°F54.6°F+2.6°NCLIMGRID
2025Dec52.4°F50.0°F+2.4°NCLIMGRID
2026Jan54.6°F49.7°F+5.0°NCLIMGRID
2026Feb55.7°F52.2°F+3.5°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
January49.7°F26/26
February52.2°F26/26
March53.3°F26/26
April54.8°F26/26
May57.3°F26/26
June59.9°F26/26
July61.2°F26/26
August61.9°F26/26
September62.5°F26/26
October59.8°F26/26
November54.6°F26/26
December50.0°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 Millbrae, California getting warmer?

Based on 96+ years of NOAA temperature records, Millbrae has warmed at a rate of approximately 0.28°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 Millbrae?

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

Where does the temperature data for Millbrae 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 Millbrae's climate profile.

How are the climate visualizations for Millbrae created?

Three visualizations are generated from Millbrae'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 Millbrae's temperature data?

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

Wear Millbrae's Climate Story

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