Climate Change in Vallejo, California

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

Based on our analysis of 96 years of temperature data near Vallejo, 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 +3.2°F above the historical baseline.

Key Climate Facts

Rate of Change

+0.3°F

per decade

Warmest Year

2014

+3.2°F anomaly

Recent Warm Years

10 / 10

above-average years

Decade Shift

+2.4°F

2020s vs 1930s

Compared to the National Average

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

National: +0.20°F/decade
Vallejo: +0.29°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 Vallejo's long-term warming trend.

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

Temperature Trend

Annual temperature anomalies plotted over time with a linear regression trend line. The slope of +0.29°F per decade quantifies the rate of change.

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

Temperature by Decade

1930s
-0.44°F
1940s
-0.87°F
1950s
-0.48°F
1960s
-0.57°F
1970s
-0.33°F
1980s
+0.39°F
1990s
+0.72°F
2000s
+0.95°F
2010s
+1.35°F
2020s
+1.98°F

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

Anomaly Scale

-3.4°F Colder Normal +3.8°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 Vallejo, CA. Filter by decade or download as CSV.

Data Sources & Audit

Station
nClimGrid 5km Grid Point
Distance
1.1 mi
Coverage
99.1%
Records
1,154
Range
1930-01 – 2026-02
Full Data Audit 1,154 records
YearMonthTempBaselineAnomalySourceGap
1930Jan44.8°F46.6°F-1.8°NCLIMGRID
1930Feb53.1°F51.2°F+1.9°NCLIMGRID
1930Mar54.5°F53.2°F+1.3°NCLIMGRID
1930Apr56.4°F55.9°F+0.5°NCLIMGRID
1930May56.0°F60.4°F-4.4°NCLIMGRID
1930Jun63.0°F64.7°F-1.7°NCLIMGRID
1930Jul62.4°F66.1°F-3.7°NCLIMGRID
1930Aug64.2°F66.1°F-1.9°NCLIMGRID
1930Sep60.8°F65.5°F-4.7°NCLIMGRID
1930Oct60.5°F61.1°F-0.6°NCLIMGRID
1930Nov53.7°F53.4°F+0.3°NCLIMGRID
1930Dec46.8°F47.2°F-0.4°NCLIMGRID
1931Jan47.9°F46.6°F+1.3°NCLIMGRID
1931Feb53.6°F51.2°F+2.4°NCLIMGRID
1931Mar55.6°F53.2°F+2.4°NCLIMGRID
1931Apr57.7°F55.9°F+1.9°NCLIMGRID
1931May64.0°F60.4°F+3.6°NCLIMGRID
1931Jun64.2°F64.7°F-0.5°NCLIMGRID
1931Jul67.8°F66.1°F+1.6°NCLIMGRID
1931Aug65.2°F66.1°F-0.9°NCLIMGRID
1931Sep62.9°F65.5°F-2.7°NCLIMGRID
1931Oct59.3°F61.1°F-1.8°NCLIMGRID
1931Nov52.0°F53.4°F-1.4°NCLIMGRID
1931Dec46.2°F47.2°F-1.0°NCLIMGRID
1932Jan45.9°F46.6°F-0.7°NCLIMGRID
1932Feb48.7°F51.2°F-2.5°NCLIMGRID
1932Mar55.3°F53.2°F+2.1°NCLIMGRID
1932Apr54.1°F55.9°F-1.8°NCLIMGRID
1932May59.0°F60.4°F-1.4°NCLIMGRID
1932Jun63.9°F64.7°F-0.8°NCLIMGRID
1932Jul64.8°F66.1°F-1.3°NCLIMGRID
1932Aug64.7°F66.1°F-1.4°NCLIMGRID
1932Sep64.2°F65.5°F-1.4°NCLIMGRID
1932Oct60.0°F61.1°F-1.1°NCLIMGRID
1932Nov57.1°F53.4°F+3.7°NCLIMGRID
1932Dec43.3°F47.2°F-3.8°NCLIMGRID
1933Jan43.4°F46.6°F-3.2°NCLIMGRID
1933Feb47.4°F51.2°F-3.7°NCLIMGRID
1933Mar53.0°F53.2°F-0.2°NCLIMGRID
1933Apr54.8°F55.9°F-1.0°NCLIMGRID
1933May55.1°F60.4°F-5.3°NCLIMGRID
1933Jun61.4°F64.7°F-3.3°NCLIMGRID
1933Jul65.8°F66.1°F-0.3°NCLIMGRID
1933Aug65.2°F66.1°F-0.9°NCLIMGRID
1933Sep62.1°F65.5°F-3.4°NCLIMGRID
1933Oct63.1°F61.1°F+2.1°NCLIMGRID
1933Nov55.9°F53.4°F+2.5°NCLIMGRID
1933Dec47.4°F47.2°F+0.2°NCLIMGRID
1934Jan49.2°F46.6°F+2.6°NCLIMGRID
1934Feb52.8°F51.2°F+1.6°NCLIMGRID
1934Mar58.7°F53.2°F+5.5°NCLIMGRID
1934Apr58.8°F55.9°F+3.0°NCLIMGRID
1934May61.7°F60.4°F+1.3°NCLIMGRID
1934Jun63.3°F64.7°F-1.4°NCLIMGRID
1934Jul65.1°F66.1°F-1.0°NCLIMGRID
1934Aug65.4°F66.1°F-0.7°NCLIMGRID
1934Sep64.6°F65.5°F-1.0°NCLIMGRID
1934Oct60.5°F61.1°F-0.6°NCLIMGRID
1934Nov55.3°F53.4°F+1.9°NCLIMGRID
1934Dec49.4°F47.2°F+2.2°NCLIMGRID
1935Jan46.9°F46.6°F+0.3°NCLIMGRID
1935Feb50.4°F51.2°F-0.8°NCLIMGRID
1935Mar49.0°F53.2°F-4.2°NCLIMGRID
1935Apr55.9°F55.9°F+0.1°NCLIMGRID
1935May58.8°F60.4°F-1.6°NCLIMGRID
1935Jun65.4°F64.7°F+0.7°NCLIMGRID
1935Jul64.2°F66.1°F-1.9°NCLIMGRID
1935Aug64.4°F66.1°F-1.8°NCLIMGRID
1935Sep62.6°F65.5°F-3.0°NCLIMGRID
1935Oct58.7°F61.1°F-2.4°NCLIMGRID
1935Nov50.9°F53.4°F-2.5°NCLIMGRID
1935Dec48.7°F47.2°F+1.5°NCLIMGRID
1936Jan50.1°F46.6°F+3.5°NCLIMGRID
1936Feb50.5°F51.2°F-0.6°NCLIMGRID
1936Mar55.3°F53.2°F+2.1°NCLIMGRID
1936Apr57.0°F55.9°F+1.1°NCLIMGRID
1936May62.1°F60.4°F+1.7°NCLIMGRID
1936Jun65.3°F64.7°F+0.6°NCLIMGRID
1936Jul66.3°F66.1°F+0.1°NCLIMGRID
1936Aug65.4°F66.1°F-0.7°NCLIMGRID
1936Sep65.3°F65.5°F-0.2°NCLIMGRID
1936Oct61.8°F61.1°F+0.7°NCLIMGRID
1936Nov53.3°F53.4°F+0.0°NCLIMGRID
1936Dec46.9°F47.2°F-0.3°NCLIMGRID
1937Jan39.8°F46.6°F-6.8°NCLIMGRID
1937Feb48.1°F51.2°F-3.1°NCLIMGRID
1937Mar53.2°F53.2°F+0.0°NCLIMGRID
1937Apr54.2°F55.9°F-1.6°NCLIMGRID
1937May60.0°F60.4°F-0.4°NCLIMGRID
1937Jun64.1°F64.7°F-0.6°NCLIMGRID
1937Jul65.4°F66.1°F-0.8°NCLIMGRID
1937Aug64.7°F66.1°F-1.4°NCLIMGRID
1937Sep63.3°F65.5°F-2.3°NCLIMGRID
1937Oct62.0°F61.1°F+1.0°NCLIMGRID
1937Nov54.8°F53.4°F+1.4°NCLIMGRID
1937Dec49.4°F47.2°F+2.3°NCLIMGRID
1938Jan46.9°F46.6°F+0.3°NCLIMGRID
1938Feb50.3°F51.2°F-0.9°NCLIMGRID
1938Mar50.5°F53.2°F-2.7°NCLIMGRID
1938Apr54.3°F55.9°F-1.6°NCLIMGRID
1938May59.2°F60.4°F-1.2°NCLIMGRID
1938Jun63.3°F64.7°F-1.4°NCLIMGRID
1938Jul64.4°F66.1°F-1.7°NCLIMGRID
1938Aug64.1°F66.1°F-2.1°NCLIMGRID
1938Sep64.5°F65.5°F-1.1°NCLIMGRID
1938Oct59.5°F61.1°F-1.6°NCLIMGRID
1938Nov52.3°F53.4°F-1.1°NCLIMGRID
1938Dec49.7°F47.2°F+2.6°NCLIMGRID
1939Jan47.4°F46.6°F+0.8°NCLIMGRID
1939Feb48.4°F51.2°F-2.8°NCLIMGRID
1939Mar51.9°F53.2°F-1.3°NCLIMGRID
1939Apr58.1°F55.9°F+2.3°NCLIMGRID
1939May60.6°F60.4°F+0.3°NCLIMGRID
1939Jun64.1°F64.7°F-0.6°NCLIMGRID
1939Jul66.0°F66.1°F-0.1°NCLIMGRID
1939Aug64.4°F66.1°F-1.7°NCLIMGRID
1939Sep67.3°F65.5°F+1.8°NCLIMGRID
1939Oct60.7°F61.1°F-0.3°NCLIMGRID
1939Nov54.7°F53.4°F+1.3°NCLIMGRID
1939Dec50.8°F47.2°F+3.6°NCLIMGRID
1940Jan48.5°F46.6°F+1.9°NCLIMGRID
1940Feb53.0°F51.2°F+1.8°NCLIMGRID
1940Mar55.0°F53.2°F+1.8°NCLIMGRID
1940Apr57.0°F55.9°F+1.2°NCLIMGRID
1940May59.5°F60.4°F-0.9°NCLIMGRID
1940Jun64.2°F64.7°F-0.5°NCLIMGRID
1940Jul64.8°F66.1°F-1.4°NCLIMGRID
1940Aug64.2°F66.1°F-2.0°NCLIMGRID
1940Sep64.3°F65.5°F-1.2°NCLIMGRID
1940Oct60.8°F61.1°F-0.2°NCLIMGRID
1940Nov52.0°F53.4°F-1.4°NCLIMGRID
1940Dec50.9°F47.2°F+3.7°NCLIMGRID
1941Jan49.2°F46.6°F+2.6°NCLIMGRID
1941Feb51.7°F51.2°F+0.6°NCLIMGRID
1941Mar55.4°F53.2°F+2.2°NCLIMGRID
1941Apr54.4°F55.9°F-1.5°NCLIMGRID
1941May61.0°F60.4°F+0.6°NCLIMGRID
1941Jun62.5°F64.7°F-2.2°NCLIMGRID
1941Jul65.8°F66.1°F-0.3°NCLIMGRID
1941Aug64.5°F66.1°F-1.7°NCLIMGRID
1941Sep63.8°F65.5°F-1.7°NCLIMGRID
1941Oct58.9°F61.1°F-2.2°NCLIMGRID
1941Nov54.2°F53.4°F+0.8°NCLIMGRID
1941Dec49.0°F47.2°F+1.9°NCLIMGRID
1942Jan46.5°F46.6°F-0.1°NCLIMGRID
1942Feb49.7°F51.2°F-1.4°NCLIMGRID
1942Mar52.0°F53.2°F-1.2°NCLIMGRID
1942Apr54.1°F55.9°F-1.7°NCLIMGRID
1942May57.0°F60.4°F-3.3°NCLIMGRID
1942Jun63.2°F64.7°F-1.6°NCLIMGRID
1942Jul65.7°F66.1°F-0.4°NCLIMGRID
1942Aug64.2°F66.1°F-1.9°NCLIMGRID
1942Sep62.6°F65.5°F-3.0°NCLIMGRID
1942Oct60.8°F61.1°F-0.3°NCLIMGRID
1942Nov53.1°F53.4°F-0.3°NCLIMGRID
1942Dec48.4°F47.2°F+1.3°NCLIMGRID
1943Jan47.9°F46.6°F+1.3°NCLIMGRID
1943Feb52.2°F51.2°F+1.1°NCLIMGRID
1943Mar53.9°F53.2°F+0.7°NCLIMGRID
1943Apr56.2°F55.9°F+0.4°NCLIMGRID
1943May61.8°F60.4°F+1.4°NCLIMGRID
1943Jun61.3°F64.7°F-3.4°NCLIMGRID
1943Jul64.3°F66.1°F-1.8°NCLIMGRID
1943Aug63.9°F66.1°F-2.2°NCLIMGRID
1943Sep65.4°F65.5°F-0.1°NCLIMGRID
1943Oct60.2°F61.1°F-0.8°NCLIMGRID
1943Nov55.4°F53.4°F+2.0°NCLIMGRID
1943Dec50.3°F47.2°F+3.1°NCLIMGRID
1944Jan47.9°F46.6°F+1.3°NCLIMGRID
1944Feb49.2°F51.2°F-1.9°NCLIMGRID
1944Mar54.8°F53.2°F+1.6°NCLIMGRID
1944Apr53.0°F55.9°F-2.8°NCLIMGRID
1944May58.5°F60.4°F-1.9°NCLIMGRID
1944Jun61.3°F64.7°F-3.4°NCLIMGRID
1944Jul62.3°F66.1°F-3.9°NCLIMGRID
1944Aug64.5°F66.1°F-1.6°NCLIMGRID
1944Sep65.1°F65.5°F-0.4°NCLIMGRID
1944Oct61.0°F61.1°F-0.1°NCLIMGRID
1944Nov50.9°F53.4°F-2.5°NCLIMGRID
1944Dec48.7°F47.2°F+1.6°NCLIMGRID
1945Jan45.4°F46.6°F-1.2°NCLIMGRID
1945Feb51.6°F51.2°F+0.4°NCLIMGRID
1945Mar49.6°F53.2°F-3.5°NCLIMGRID
1945Apr57.4°F55.9°F+1.5°NCLIMGRID
1945May56.8°F60.4°F-3.6°NCLIMGRID
1945Jun66.1°F64.7°F+1.4°NCLIMGRID
1945Jul66.2°F66.1°F+0.1°NCLIMGRID
1945Aug64.1°F66.1°F-2.0°NCLIMGRID
1945Sep65.3°F65.5°F-0.3°NCLIMGRID
1945Oct60.8°F61.1°F-0.3°NCLIMGRID
1945Nov53.1°F53.4°F-0.3°NCLIMGRID
1945Dec48.1°F47.2°F+1.0°NCLIMGRID
1946Jan45.8°F46.6°F-0.7°NCLIMGRID
1946Feb46.3°F51.2°F-4.9°NCLIMGRID
1946Mar51.6°F53.2°F-1.6°NCLIMGRID
1946Apr54.8°F55.9°F-1.0°NCLIMGRID
1946May57.5°F60.4°F-2.8°NCLIMGRID
1946Jun62.2°F64.7°F-2.5°NCLIMGRID
1946Jul65.7°F66.1°F-0.5°NCLIMGRID
1946Aug63.7°F66.1°F-2.4°NCLIMGRID
1946Sep64.9°F65.5°F-0.6°NCLIMGRID
1946Oct58.3°F61.1°F-2.8°NCLIMGRID
1946Nov51.0°F53.4°F-2.4°NCLIMGRID
1946Dec46.5°F47.2°F-0.6°NCLIMGRID
1947Jan42.2°F46.6°F-4.3°NCLIMGRID
1947Feb50.6°F51.2°F-0.5°NCLIMGRID
1947Mar54.0°F53.2°F+0.8°NCLIMGRID
1947Apr58.2°F55.9°F+2.4°NCLIMGRID
1947May61.5°F60.4°F+1.1°NCLIMGRID
1947Jun65.3°F64.7°F+0.6°NCLIMGRID
1947Jul65.7°F66.1°F-0.4°NCLIMGRID
1947Aug65.4°F66.1°F-0.8°NCLIMGRID
1947Sep66.2°F65.5°F+0.6°NCLIMGRID
1947Oct60.1°F61.1°F-1.0°NCLIMGRID
1947Nov50.8°F53.4°F-2.6°NCLIMGRID
1947Dec45.7°F47.2°F-1.5°NCLIMGRID
1948Jan48.2°F46.6°F+1.6°NCLIMGRID
1948Feb46.7°F51.2°F-4.4°NCLIMGRID
1948Mar49.2°F53.2°F-4.0°NCLIMGRID
1948Apr51.5°F55.9°F-4.3°NCLIMGRID
1948May56.4°F60.4°F-4.0°NCLIMGRID
1948Jun63.2°F64.7°F-1.5°NCLIMGRID
1948Jul65.1°F66.1°F-1.0°NCLIMGRID
1948Aug64.8°F66.1°F-1.3°NCLIMGRID
1948Sep63.5°F65.5°F-2.0°NCLIMGRID
1948Oct60.4°F61.1°F-0.7°NCLIMGRID
1948Nov52.7°F53.4°F-0.7°NCLIMGRID
1948Dec43.2°F47.2°F-4.0°NCLIMGRID
1949Jan39.3°F46.6°F-7.3°NCLIMGRID
1949Feb45.4°F51.2°F-5.7°NCLIMGRID
1949Mar52.2°F53.2°F-1.0°NCLIMGRID
1949Apr58.0°F55.9°F+2.1°NCLIMGRID
1949May59.4°F60.4°F-1.0°NCLIMGRID
1949Jun64.2°F64.7°F-0.5°NCLIMGRID
1949Jul64.1°F66.1°F-2.0°NCLIMGRID
1949Aug63.6°F66.1°F-2.6°NCLIMGRID
1949Sep65.8°F65.5°F+0.2°NCLIMGRID
1949Oct58.7°F61.1°F-2.4°NCLIMGRID
1949Nov56.7°F53.4°F+3.3°NCLIMGRID
1949Dec45.3°F47.2°F-1.9°NCLIMGRID
1950Jan42.6°F46.6°F-4.0°NCLIMGRID
1950Feb49.2°F51.2°F-1.9°NCLIMGRID
1950Mar51.3°F53.2°F-1.9°NCLIMGRID
1950Apr57.4°F55.9°F+1.5°NCLIMGRID
1950May58.7°F60.4°F-1.7°NCLIMGRID
1950Jun61.3°F64.7°F-3.4°NCLIMGRID
1950Jul65.6°F66.1°F-0.6°NCLIMGRID
1950Aug66.8°F66.1°F+0.7°NCLIMGRID
1950Sep66.0°F65.5°F+0.5°NCLIMGRID
1950Oct61.4°F61.1°F+0.3°NCLIMGRID
1950Nov57.5°F53.4°F+4.2°NCLIMGRID
1950Dec50.9°F47.2°F+3.7°NCLIMGRID
1951Jan47.0°F46.6°F+0.4°NCLIMGRID
1951Feb49.7°F51.2°F-1.5°NCLIMGRID
1951Mar52.5°F53.2°F-0.7°NCLIMGRID
1951Apr53.7°F55.9°F-2.2°NCLIMGRID
1951May59.7°F60.4°F-0.6°NCLIMGRID
1951Jun61.1°F64.7°F-3.6°NCLIMGRID
1951Jul63.7°F66.1°F-2.4°NCLIMGRID
1951Aug64.0°F66.1°F-2.2°NCLIMGRID
1951Sep64.3°F65.5°F-1.2°NCLIMGRID
1951Oct60.8°F61.1°F-0.3°NCLIMGRID
1951Nov54.1°F53.4°F+0.7°NCLIMGRID
1951Dec46.7°F47.2°F-0.4°NCLIMGRID
1952Jan44.3°F46.6°F-2.2°NCLIMGRID
1952Feb49.6°F51.2°F-1.5°NCLIMGRID
1952Mar50.6°F53.2°F-2.6°NCLIMGRID
1952Apr56.2°F55.9°F+0.3°NCLIMGRID
1952May60.5°F60.4°F+0.1°NCLIMGRID
1952Jun59.3°F64.7°F-5.4°NCLIMGRID
1952Jul65.3°F66.1°F-0.8°NCLIMGRID
1952Aug64.9°F66.1°F-1.3°NCLIMGRID
1952Sep66.5°F65.5°F+1.0°NCLIMGRID
1952Oct61.3°F61.1°F+0.3°NCLIMGRID
1952Nov51.3°F53.4°F-2.1°NCLIMGRID
1952Dec48.8°F47.2°F+1.7°NCLIMGRID
1953Jan51.7°F46.6°F+5.1°NCLIMGRID
1953Feb51.5°F51.2°F+0.3°NCLIMGRID
1953Mar52.1°F53.2°F-1.1°NCLIMGRID
1953Apr53.7°F55.9°F-2.1°NCLIMGRID
1953May56.2°F60.4°F-4.2°NCLIMGRID
1953Jun60.8°F64.7°F-3.9°NCLIMGRID
1953Jul65.6°F66.1°F-0.5°NCLIMGRID
1953Aug63.5°F66.1°F-2.7°NCLIMGRID
1953Sep66.6°F65.5°F+1.1°NCLIMGRID
1953Oct59.8°F61.1°F-1.3°NCLIMGRID
1953Nov54.4°F53.4°F+1.0°NCLIMGRID
1953Dec50.0°F47.2°F+2.8°NCLIMGRID
1954Jan47.4°F46.6°F+0.9°NCLIMGRID
1954Feb50.0°F51.2°F-1.2°NCLIMGRID
1954Mar49.6°F53.2°F-3.6°NCLIMGRID
1954Apr57.2°F55.9°F+1.3°NCLIMGRID
1954May60.0°F60.4°F-0.4°NCLIMGRID
1954Jun63.5°F64.7°F-1.2°NCLIMGRID
1954Jul66.5°F66.1°F+0.3°NCLIMGRID
1954Aug62.3°F66.1°F-3.8°NCLIMGRID
1954Sep63.6°F65.5°F-1.9°NCLIMGRID
1954Oct60.1°F61.1°F-1.0°NCLIMGRID
1954Nov52.2°F53.4°F-1.2°NCLIMGRID
1954Dec45.6°F47.2°F-1.5°NCLIMGRID
1955Jan43.5°F46.6°F-3.1°NCLIMGRID
1955Feb49.0°F51.2°F-2.2°NCLIMGRID
1955Mar52.1°F53.2°F-1.1°NCLIMGRID
1955Apr51.3°F55.9°F-4.6°NCLIMGRID
1955May59.9°F60.4°F-0.5°NCLIMGRID
1955Jun62.0°F64.7°F-2.7°NCLIMGRID
1955Jul63.4°F66.1°F-2.8°NCLIMGRID
1955Aug63.6°F66.1°F-2.5°NCLIMGRID
1955Sep63.7°F65.5°F-1.8°NCLIMGRID
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1984Mar56.8°F53.2°F+3.6°NCLIMGRID
1984Apr55.8°F55.9°F-0.1°NCLIMGRID
1984May64.2°F60.4°F+3.8°NCLIMGRID
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1984Nov51.8°F53.4°F-1.6°NCLIMGRID
1984Dec45.6°F47.2°F-1.6°NCLIMGRID
1985Jan42.9°F46.6°F-3.7°NCLIMGRID
1985Feb51.8°F51.2°F+0.7°NCLIMGRID
1985Mar50.6°F53.2°F-2.6°NCLIMGRID
1985Apr59.4°F55.9°F+3.6°NCLIMGRID
1985May59.7°F60.4°F-0.6°NCLIMGRID
1985Jun68.2°F64.7°F+3.4°NCLIMGRID
1985Jul68.5°F66.1°F+2.4°NCLIMGRID
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1986Jan50.7°F46.6°F+4.1°NCLIMGRID
1986Feb54.8°F51.2°F+3.7°NCLIMGRID
1986Mar57.1°F53.2°F+3.9°NCLIMGRID
1986Apr57.1°F55.9°F+1.3°NCLIMGRID
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1986Aug66.0°F66.1°F-0.1°NCLIMGRID
1986Sep61.8°F65.5°F-3.8°NCLIMGRID
1986Oct62.0°F61.1°F+0.9°NCLIMGRID
1986Nov56.2°F53.4°F+2.8°NCLIMGRID
1986Dec47.5°F47.2°F+0.3°NCLIMGRID
1987Jan46.7°F46.6°F+0.1°NCLIMGRID
1987Feb52.1°F51.2°F+1.0°NCLIMGRID
1987Mar53.7°F53.2°F+0.5°NCLIMGRID
1987Apr60.2°F55.9°F+4.3°NCLIMGRID
1987May63.6°F60.4°F+3.2°NCLIMGRID
1987Jun65.2°F64.7°F+0.5°NCLIMGRID
1987Jul63.5°F66.1°F-2.7°NCLIMGRID
1987Aug65.8°F66.1°F-0.3°NCLIMGRID
1987Sep65.3°F65.5°F-0.2°NCLIMGRID
1987Oct63.7°F61.1°F+2.6°NCLIMGRID
1987Nov53.3°F53.4°F+0.0°NCLIMGRID
1987Dec48.3°F47.2°F+1.1°NCLIMGRID
1988Jan48.2°F46.6°F+1.6°NCLIMGRID
1988Feb53.2°F51.2°F+2.1°NCLIMGRID
1988Mar56.8°F53.2°F+3.7°NCLIMGRID
1988Apr57.6°F55.9°F+1.8°NCLIMGRID
1988May59.8°F60.4°F-0.6°NCLIMGRID
1988Jun65.5°F64.7°F+0.7°NCLIMGRID
1988Jul69.4°F66.1°F+3.3°NCLIMGRID
1988Aug66.7°F66.1°F+0.5°NCLIMGRID
1988Sep64.7°F65.5°F-0.8°NCLIMGRID
1988Oct61.7°F61.1°F+0.6°NCLIMGRID
1988Nov53.9°F53.4°F+0.5°NCLIMGRID
1988Dec47.9°F47.2°F+0.7°NCLIMGRID
1989Jan45.6°F46.6°F-1.0°NCLIMGRID
1989Feb46.9°F51.2°F-4.3°NCLIMGRID
1989Mar54.2°F53.2°F+1.0°NCLIMGRID
1989Apr59.2°F55.9°F+3.4°NCLIMGRID
1989May60.7°F60.4°F+0.3°NCLIMGRID
1989Jun65.1°F64.7°F+0.4°NCLIMGRID
1989Jul66.7°F66.1°F+0.6°NCLIMGRID
1989Aug65.8°F66.1°F-0.4°NCLIMGRID
1989Sep63.6°F65.5°F-1.9°NCLIMGRID
1989Oct60.1°F61.1°F-1.0°NCLIMGRID
1989Nov54.2°F53.4°F+0.8°NCLIMGRID
1989Dec45.5°F47.2°F-1.7°NCLIMGRID
1990Jan46.8°F46.6°F+0.2°NCLIMGRID
1990Feb47.3°F51.2°F-3.9°NCLIMGRID
1990Mar53.6°F53.2°F+0.4°NCLIMGRID
1990Apr59.1°F55.9°F+3.2°NCLIMGRID
1990May60.2°F60.4°F-0.2°NCLIMGRID
1990Jun65.3°F64.7°F+0.6°NCLIMGRID
1990Jul66.9°F66.1°F+0.8°NCLIMGRID
1990Aug68.0°F66.1°F+1.9°NCLIMGRID
1990Sep66.8°F65.5°F+1.3°NCLIMGRID
1990Oct62.7°F61.1°F+1.6°NCLIMGRID
1990Nov53.7°F53.4°F+0.3°NCLIMGRID
1990Dec42.7°F47.2°F-4.4°NCLIMGRID
1991Jan47.0°F46.6°F+0.5°NCLIMGRID
1991Feb54.4°F51.2°F+3.2°NCLIMGRID
1991Mar50.2°F53.2°F-3.0°NCLIMGRID
1991Apr54.9°F55.9°F-0.9°NCLIMGRID
1991May58.3°F60.4°F-2.1°NCLIMGRID
1991Jun62.3°F64.7°F-2.4°NCLIMGRID
1991Jul65.8°F66.1°F-0.4°NCLIMGRID
1991Aug65.4°F66.1°F-0.7°NCLIMGRID
1991Sep65.9°F65.5°F+0.3°NCLIMGRID
1991Oct64.6°F61.1°F+3.5°NCLIMGRID
1991Nov55.9°F53.4°F+2.5°NCLIMGRID
1991Dec47.8°F47.2°F+0.6°NCLIMGRID
1992Jan45.0°F46.6°F-1.6°NCLIMGRID
1992Feb54.3°F51.2°F+3.1°NCLIMGRID
1992Mar55.4°F53.2°F+2.2°NCLIMGRID
1992Apr60.0°F55.9°F+4.2°NCLIMGRID
1992May64.4°F60.4°F+4.0°NCLIMGRID
1992Jun64.1°F64.7°F-0.7°NCLIMGRID
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1992Aug68.3°F66.1°F+2.2°NCLIMGRID
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1992Nov55.1°F53.4°F+1.7°NCLIMGRID
1992Dec45.8°F47.2°F-1.4°NCLIMGRID
1993Jan45.6°F46.6°F-1.0°NCLIMGRID
1993Feb49.6°F51.2°F-1.6°NCLIMGRID
1993Mar56.5°F53.2°F+3.3°NCLIMGRID
1993Apr56.4°F55.9°F+0.5°NCLIMGRID
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1994Feb49.0°F51.2°F-2.1°NCLIMGRID
1994Mar55.4°F53.2°F+2.2°NCLIMGRID
1994Apr57.1°F55.9°F+1.3°NCLIMGRID
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1995Jan50.7°F46.6°F+4.1°NCLIMGRID
1995Feb53.9°F51.2°F+2.7°NCLIMGRID
1995Mar52.4°F53.2°F-0.8°NCLIMGRID
1995Apr55.6°F55.9°F-0.2°NCLIMGRID
1995May58.4°F60.4°F-2.0°NCLIMGRID
1995Jun64.0°F64.7°F-0.7°NCLIMGRID
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1996Aug68.3°F66.1°F+2.2°NCLIMGRID
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1996Nov55.4°F53.4°F+2.0°NCLIMGRID
1996Dec51.1°F47.2°F+3.9°NCLIMGRID
1997Jan48.5°F46.6°F+1.9°NCLIMGRID
1997Feb52.8°F51.2°F+1.7°NCLIMGRID
1997Mar56.5°F53.2°F+3.3°NCLIMGRID
1997Apr58.8°F55.9°F+2.9°NCLIMGRID
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1997Jun66.0°F64.7°F+1.3°NCLIMGRID
1997Jul66.9°F66.1°F+0.8°NCLIMGRID
1997Aug67.8°F66.1°F+1.7°NCLIMGRID
1997Sep68.9°F65.5°F+3.4°NCLIMGRID
1997Oct61.9°F61.1°F+0.8°NCLIMGRID
1997Nov56.9°F53.4°F+3.5°NCLIMGRID
1997Dec49.6°F47.2°F+2.4°NCLIMGRID
1998Jan49.8°F46.6°F+3.2°NCLIMGRID
1998Feb50.0°F51.2°F-1.1°NCLIMGRID
1998Mar54.2°F53.2°F+1.0°NCLIMGRID
1998Apr55.0°F55.9°F-0.8°NCLIMGRID
1998May56.0°F60.4°F-4.4°NCLIMGRID
1998Jun62.5°F64.7°F-2.2°NCLIMGRID
1998Jul66.4°F66.1°F+0.3°NCLIMGRID
1998Aug68.9°F66.1°F+2.8°NCLIMGRID
1998Sep66.5°F65.5°F+0.9°NCLIMGRID
1998Oct60.0°F61.1°F-1.1°NCLIMGRID
1998Nov52.7°F53.4°F-0.7°NCLIMGRID
1998Dec45.4°F47.2°F-1.7°NCLIMGRID
1999Jan46.5°F46.6°F-0.1°NCLIMGRID
1999Feb49.1°F51.2°F-2.1°NCLIMGRID
1999Mar50.4°F53.2°F-2.8°NCLIMGRID
1999Apr55.8°F55.9°F+0.0°NCLIMGRID
1999May57.9°F60.4°F-2.5°NCLIMGRID
1999Jun63.1°F64.7°F-1.6°NCLIMGRID
1999Jul64.8°F66.1°F-1.4°NCLIMGRID
1999Aug66.3°F66.1°F+0.2°NCLIMGRID
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1999Nov55.7°F53.4°F+2.3°NCLIMGRID
1999Dec49.7°F47.2°F+2.5°NCLIMGRID
2000Jan49.7°F46.6°F+3.1°NCLIMGRID
2000Feb52.2°F51.2°F+1.0°NCLIMGRID
2000Mar54.6°F53.2°F+1.4°NCLIMGRID
2000Apr58.7°F55.9°F+2.8°NCLIMGRID
2000May62.0°F60.4°F+1.6°NCLIMGRID
2000Jun66.1°F64.7°F+1.4°NCLIMGRID
2000Jul64.1°F66.1°F-2.0°NCLIMGRID
2000Aug66.8°F66.1°F+0.7°NCLIMGRID
2000Sep66.6°F65.5°F+1.0°NCLIMGRID
2000Oct59.9°F61.1°F-1.2°NCLIMGRID
2000Nov50.2°F53.4°F-3.2°NCLIMGRID
2000Dec49.4°F47.2°F+2.2°NCLIMGRID
2001Jan46.6°F46.6°F+0.0°NCLIMGRID
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2001Mar56.5°F53.2°F+3.3°NCLIMGRID
2001Apr54.1°F55.9°F-1.8°NCLIMGRID
2001May66.6°F60.4°F+6.3°NCLIMGRID
2001Jun67.8°F64.7°F+3.1°NCLIMGRID
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2001Aug67.2°F66.1°F+1.0°NCLIMGRID
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2001Oct63.5°F61.1°F+2.4°NCLIMGRID
2001Nov56.0°F53.4°F+2.6°NCLIMGRID
2001Dec49.8°F47.2°F+2.6°NCLIMGRID
2002Jan46.8°F46.6°F+0.2°NCLIMGRID
2002Feb52.1°F51.2°F+0.9°NCLIMGRID
2002Mar53.0°F53.2°F-0.2°NCLIMGRID
2002Apr56.7°F55.9°F+0.9°NCLIMGRID
2002May59.5°F60.4°F-0.9°NCLIMGRID
2002Jun65.8°F64.7°F+1.1°NCLIMGRID
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2002Oct61.0°F61.1°F+0.0°NCLIMGRID
2002Nov55.9°F53.4°F+2.5°NCLIMGRID
2002Dec50.3°F47.2°F+3.1°NCLIMGRID
2003Jan52.2°F46.6°F+5.6°NCLIMGRID
2003Feb50.8°F51.2°F-0.3°NCLIMGRID
2003Mar55.5°F53.2°F+2.4°NCLIMGRID
2003Apr52.4°F55.9°F-3.5°NCLIMGRID
2003May60.5°F60.4°F+0.1°NCLIMGRID
2003Jun65.7°F64.7°F+1.0°NCLIMGRID
2003Jul68.4°F66.1°F+2.3°NCLIMGRID
2003Aug67.8°F66.1°F+1.6°NCLIMGRID
2003Sep67.9°F65.5°F+2.4°NCLIMGRID
2003Oct64.2°F61.1°F+3.2°NCLIMGRID
2003Nov51.4°F53.4°F-2.0°NCLIMGRID
2003Dec49.2°F47.2°F+2.0°NCLIMGRID
2004Jan47.6°F46.6°F+1.0°NCLIMGRID
2004Feb50.8°F51.2°F-0.3°NCLIMGRID
2004Mar60.5°F53.2°F+7.3°NCLIMGRID
2004Apr59.2°F55.9°F+3.3°NCLIMGRID
2004May61.7°F60.4°F+1.3°NCLIMGRID
2004Jun65.5°F64.7°F+0.8°NCLIMGRID
2004Jul66.6°F66.1°F+0.5°NCLIMGRID
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2004Nov52.7°F53.4°F-0.7°NCLIMGRID
2004Dec48.7°F47.2°F+1.5°NCLIMGRID
2005Jan46.4°F46.6°F-0.2°NCLIMGRID
2005Feb53.2°F51.2°F+2.0°NCLIMGRID
2005Mar56.3°F53.2°F+3.1°NCLIMGRID
2005Apr55.6°F55.9°F-0.3°NCLIMGRID
2005May60.7°F60.4°F+0.4°NCLIMGRID
2005Jun63.2°F64.7°F-1.5°NCLIMGRID
2005Jul68.5°F66.1°F+2.3°NCLIMGRID
2005Aug66.5°F66.1°F+0.3°NCLIMGRID
2005Sep62.5°F65.5°F-3.1°NCLIMGRID
2005Oct61.0°F61.1°F-0.1°NCLIMGRID
2005Nov56.0°F53.4°F+2.6°NCLIMGRID
2005Dec50.9°F47.2°F+3.8°NCLIMGRID
2006Jan49.4°F46.6°F+2.8°NCLIMGRID
2006Feb52.0°F51.2°F+0.9°NCLIMGRID
2006Mar49.5°F53.2°F-3.7°NCLIMGRID
2006Apr55.0°F55.9°F-0.8°NCLIMGRID
2006May61.9°F60.4°F+1.5°NCLIMGRID
2006Jun67.2°F64.7°F+2.5°NCLIMGRID
2006Jul70.0°F66.1°F+3.9°NCLIMGRID
2006Aug65.7°F66.1°F-0.4°NCLIMGRID
2006Sep64.7°F65.5°F-0.9°NCLIMGRID
2006Oct60.2°F61.1°F-0.8°NCLIMGRID
2006Nov54.5°F53.4°F+1.1°NCLIMGRID
2006Dec48.6°F47.2°F+1.4°NCLIMGRID
2007Jan46.0°F46.6°F-0.6°NCLIMGRID
2007Feb51.5°F51.2°F+0.4°NCLIMGRID
2007Mar57.2°F53.2°F+4.0°NCLIMGRID
2007Apr57.2°F55.9°F+1.4°NCLIMGRID
2007May61.9°F60.4°F+1.5°NCLIMGRID
2007Jun65.8°F64.7°F+1.0°NCLIMGRID
2007Jul67.2°F66.1°F+1.1°NCLIMGRID
2007Aug68.0°F66.1°F+1.9°NCLIMGRID
2007Sep64.9°F65.5°F-0.7°NCLIMGRID
2007Oct59.7°F61.1°F-1.3°NCLIMGRID
2007Nov55.3°F53.4°F+1.9°NCLIMGRID
2007Dec47.2°F47.2°F+0.1°NCLIMGRID
2008Jan46.6°F46.6°F+0.0°NCLIMGRID
2008Feb50.5°F51.2°F-0.6°NCLIMGRID
2008Mar53.6°F53.2°F+0.4°NCLIMGRID
2008Apr55.6°F55.9°F-0.2°NCLIMGRID
2008May61.5°F60.4°F+1.1°NCLIMGRID
2008Jun66.5°F64.7°F+1.8°NCLIMGRID
2008Jul67.3°F66.1°F+1.1°NCLIMGRID
2008Aug68.3°F66.1°F+2.2°NCLIMGRID
2008Sep66.6°F65.5°F+1.1°NCLIMGRID
2008Oct63.0°F61.1°F+2.0°NCLIMGRID
2008Nov56.7°F53.4°F+3.3°NCLIMGRID
2008Dec45.6°F47.2°F-1.6°NCLIMGRID
2009Jan49.2°F46.6°F+2.6°NCLIMGRID
2009Feb50.5°F51.2°F-0.6°NCLIMGRID
2009Mar53.7°F53.2°F+0.6°NCLIMGRID
2009Apr56.5°F55.9°F+0.6°NCLIMGRID
2009May62.4°F60.4°F+2.1°NCLIMGRID
2009Jun64.5°F64.7°F-0.2°NCLIMGRID
2009Jul66.1°F66.1°F+0.0°NCLIMGRID
2009Aug67.7°F66.1°F+1.5°NCLIMGRID
2009Sep68.4°F65.5°F+2.8°NCLIMGRID
2009Oct60.5°F61.1°F-0.6°NCLIMGRID
2009Nov53.6°F53.4°F+0.2°NCLIMGRID
2009Dec46.5°F47.2°F-0.7°NCLIMGRID
2010Jan48.5°F46.6°F+1.9°NCLIMGRID
2010Feb52.2°F51.2°F+1.0°NCLIMGRID
2010Mar53.5°F53.2°F+0.3°NCLIMGRID
2010Apr53.7°F55.9°F-2.1°NCLIMGRID
2010May57.2°F60.4°F-3.2°NCLIMGRID
2010Jun65.0°F64.7°F+0.3°NCLIMGRID
2010Jul64.6°F66.1°F-1.6°NCLIMGRID
2010Aug64.4°F66.1°F-1.8°NCLIMGRID
2010Sep66.8°F65.5°F+1.3°NCLIMGRID
2010Oct61.8°F61.1°F+0.7°NCLIMGRID
2010Nov53.9°F53.4°F+0.5°NCLIMGRID
2010Dec50.3°F47.2°F+3.1°NCLIMGRID
2011Jan48.0°F46.6°F+1.4°NCLIMGRID
2011Feb49.5°F51.2°F-1.6°NCLIMGRID
2011Mar53.0°F53.2°F-0.2°NCLIMGRID
2011Apr55.9°F55.9°F+0.0°NCLIMGRID
2011May57.4°F60.4°F-3.0°NCLIMGRID
2011Jun62.6°F64.7°F-2.1°NCLIMGRID
2011Jul65.4°F66.1°F-0.8°NCLIMGRID
2011Aug64.8°F66.1°F-1.4°NCLIMGRID
2011Sep67.2°F65.5°F+1.6°NCLIMGRID
2011Oct62.3°F61.1°F+1.2°NCLIMGRID
2011Nov51.3°F53.4°F-2.1°NCLIMGRID
2011Dec46.8°F47.2°F-0.4°NCLIMGRID
2012Jan48.9°F46.6°F+2.3°NCLIMGRID
2012Feb51.8°F51.2°F+0.6°NCLIMGRID
2012Mar52.4°F53.2°F-0.8°NCLIMGRID
2012Apr57.3°F55.9°F+1.5°NCLIMGRID
2012May61.5°F60.4°F+1.1°NCLIMGRID
2012Jun65.0°F64.7°F+0.3°NCLIMGRID
2012Jul66.0°F66.1°F-0.1°NCLIMGRID
2012Aug66.7°F66.1°F+0.5°NCLIMGRID
2012Sep64.3°F65.5°F-1.3°NCLIMGRID
2012Oct63.6°F61.1°F+2.5°NCLIMGRID
2012Nov56.2°F53.4°F+2.8°NCLIMGRID
2012Dec48.9°F47.2°F+1.7°NCLIMGRID
2013Jan46.1°F46.6°F-0.5°NCLIMGRID
2013Feb50.0°F51.2°F-1.1°NCLIMGRID
2013Mar55.3°F53.2°F+2.2°NCLIMGRID
2013Apr60.9°F55.9°F+5.1°NCLIMGRID
2013May63.1°F60.4°F+2.7°NCLIMGRID
2013Jun66.8°F64.7°F+2.1°NCLIMGRID
2013Jul66.6°F66.1°F+0.5°NCLIMGRID
2013Aug67.2°F66.1°F+1.0°NCLIMGRID
2013Sep66.3°F65.5°F+0.8°NCLIMGRID
2013Oct60.3°F61.1°F-0.8°NCLIMGRID
2013Nov55.1°F53.4°F+1.8°NCLIMGRID
2013Dec46.1°F47.2°F-1.1°NCLIMGRID
2014Jan51.8°F46.6°F+5.2°NCLIMGRID
2014Feb53.1°F51.2°F+2.0°NCLIMGRID
2014Mar57.3°F53.2°F+4.1°NCLIMGRID
2014Apr59.0°F55.9°F+3.1°NCLIMGRID
2014May63.6°F60.4°F+3.3°NCLIMGRID
2014Jun66.4°F64.7°F+1.7°NCLIMGRID
2014Jul68.4°F66.1°F+2.3°NCLIMGRID
2014Aug67.1°F66.1°F+0.9°NCLIMGRID
2014Sep67.4°F65.5°F+1.8°NCLIMGRID
2014Oct65.5°F61.1°F+4.4°NCLIMGRID
2014Nov56.9°F53.4°F+3.6°NCLIMGRID
2014Dec53.5°F47.2°F+6.3°NCLIMGRID
2015Jan50.6°F46.6°F+4.0°NCLIMGRID
2015Feb56.0°F51.2°F+4.8°NCLIMGRID
2015Mar58.4°F53.2°F+5.2°NCLIMGRID
2015Apr57.7°F55.9°F+1.9°NCLIMGRID
2015May59.2°F60.4°F-1.2°NCLIMGRID
2015Jun66.1°F64.7°F+1.4°NCLIMGRID
2015Jul68.4°F66.1°F+2.2°NCLIMGRID
2015Aug68.9°F66.1°F+2.7°NCLIMGRID
2015Sep67.9°F65.5°F+2.3°NCLIMGRID
2015Oct66.5°F61.1°F+5.4°NCLIMGRID
2015Nov52.3°F53.4°F-1.1°NCLIMGRID
2015Dec47.6°F47.2°F+0.4°NCLIMGRID
2016Jan50.9°F46.6°F+4.3°NCLIMGRID
2016Feb56.0°F51.2°F+4.8°NCLIMGRID
2016Mar55.7°F53.2°F+2.6°NCLIMGRID
2016Apr59.6°F55.9°F+3.8°NCLIMGRID
2016May62.2°F60.4°F+1.8°NCLIMGRID
2016Jun66.8°F64.7°F+2.1°NCLIMGRID
2016Jul66.1°F66.1°F-0.1°NCLIMGRID
2016Aug65.1°F66.1°F-1.0°NCLIMGRID
2016Sep65.8°F65.5°F+0.2°NCLIMGRID
2016Oct60.2°F61.1°F-0.9°NCLIMGRID
2016Nov55.5°F53.4°F+2.1°NCLIMGRID
2016Dec47.0°F47.2°F-0.1°NCLIMGRID
2017Jan46.5°F46.6°F-0.1°NCLIMGRID
2017Feb51.9°F51.2°F+0.8°NCLIMGRID
2017Mar56.5°F53.2°F+3.3°NCLIMGRID
2017Apr57.2°F55.9°F+1.4°NCLIMGRID
2017May62.2°F60.4°F+1.9°NCLIMGRID
2017Jun67.5°F64.7°F+2.8°NCLIMGRID
2017Jul68.7°F66.1°F+2.6°NCLIMGRID
2017Aug68.7°F66.1°F+2.6°NCLIMGRID
2017Sep68.2°F65.5°F+2.7°NCLIMGRID
2017Oct62.7°F61.1°F+1.7°NCLIMGRID
2017Nov55.2°F53.4°F+1.8°NCLIMGRID
2017Dec48.9°F47.2°F+1.7°NCLIMGRID
2018Jan50.6°F46.6°F+4.0°NCLIMGRID
2018Feb51.4°F51.2°F+0.2°NCLIMGRID
2018Mar52.9°F53.2°F-0.3°NCLIMGRID
2018Apr57.2°F55.9°F+1.4°NCLIMGRID
2018May61.0°F60.4°F+0.6°NCLIMGRID
2018Jun65.4°F64.7°F+0.7°NCLIMGRID
2018Jul67.6°F66.1°F+1.5°NCLIMGRID
2018Aug66.3°F66.1°F+0.1°NCLIMGRID
2018Sep64.2°F65.5°F-1.4°NCLIMGRID
2018Oct64.0°F61.1°F+2.9°NCLIMGRID
2018Nov55.9°F53.4°F+2.5°NCLIMGRID
2018Dec50.6°F47.2°F+3.5°NCLIMGRID
2019Jan52.0°F46.6°F+5.4°NCLIMGRID
2019Feb48.1°F51.2°F-3.1°NCLIMGRID
2019Mar53.8°F53.2°F+0.6°NCLIMGRID
2019Apr60.3°F55.9°F+4.4°NCLIMGRID
2019May59.0°F60.4°F-1.4°NCLIMGRID
2019Jun67.2°F64.7°F+2.4°NCLIMGRID
2019Jul67.2°F66.1°F+1.1°NCLIMGRID
2019Aug69.3°F66.1°F+3.1°NCLIMGRID
2019Sep67.3°F65.5°F+1.7°NCLIMGRID
2019Oct61.8°F61.1°F+0.7°NCLIMGRID
2019Nov54.7°F53.4°F+1.3°NCLIMGRID
2019Dec50.9°F47.2°F+3.7°NCLIMGRID
2020Jan49.1°F46.6°F+2.5°NCLIMGRID
2020Feb54.2°F51.2°F+3.0°NCLIMGRID
2020Mar53.3°F53.2°F+0.1°NCLIMGRID
2020Apr58.7°F55.9°F+2.8°NCLIMGRID
2020May63.5°F60.4°F+3.2°NCLIMGRID
2020Jun67.7°F64.7°F+3.0°NCLIMGRID
2020Jul67.0°F66.1°F+0.8°NCLIMGRID
2020Aug71.3°F66.1°F+5.1°NCLIMGRID
2020Sep70.8°F65.5°F+5.2°NCLIMGRID
2020Oct68.6°F61.1°F+7.5°NCLIMGRID
2020Nov54.5°F53.4°F+1.1°NCLIMGRID
2020Dec50.6°F47.2°F+3.4°NCLIMGRID
2021Jan51.0°F46.6°F+4.4°NCLIMGRID
2021Feb52.8°F51.2°F+1.7°NCLIMGRID
2021Mar52.9°F53.2°F-0.3°NCLIMGRID
2021Apr58.4°F55.9°F+2.5°NCLIMGRID
2021May63.1°F60.4°F+2.8°NCLIMGRID
2021Jun66.8°F64.7°F+2.1°NCLIMGRID
2021Jul67.5°F66.1°F+1.4°NCLIMGRID
2021Aug67.8°F66.1°F+1.7°NCLIMGRID
2021Sep67.3°F65.5°F+1.7°NCLIMGRID
2021Oct60.7°F61.1°F-0.4°NCLIMGRID
2021Nov55.5°F53.4°F+2.1°NCLIMGRID
2021Dec47.9°F47.2°F+0.7°NCLIMGRID
2022Jan50.2°F46.6°F+3.6°NCLIMGRID
2022Feb51.9°F51.2°F+0.8°NCLIMGRID
2022Mar55.8°F53.2°F+2.6°NCLIMGRID
2022Apr57.1°F55.9°F+1.3°NCLIMGRID
2022May62.2°F60.4°F+1.9°NCLIMGRID
2022Jun67.9°F64.7°F+3.2°NCLIMGRID
2022Jul66.0°F66.1°F-0.1°NCLIMGRID
2022Aug69.3°F66.1°F+3.2°NCLIMGRID
2022Sep70.0°F65.5°F+4.5°NCLIMGRID
2022Oct62.9°F61.1°F+1.8°NCLIMGRID
2022Nov51.0°F53.4°F-2.4°NCLIMGRID
2022Dec47.2°F47.2°F+0.0°NCLIMGRID
2023Jan50.2°F46.6°F+3.6°NCLIMGRID
2023Feb48.5°F51.2°F-2.6°NCLIMGRID
2023Mar49.6°F53.2°F-3.6°NCLIMGRID
2023Apr56.2°F55.9°F+0.4°NCLIMGRID
2023May58.7°F60.4°F-1.6°NCLIMGRID
2023Jun62.5°F64.7°F-2.2°NCLIMGRID
2023Jul68.0°F66.1°F+1.9°NCLIMGRID
2023Aug69.7°F66.1°F+3.6°NCLIMGRID
2023Sep65.0°F65.5°F-0.5°NCLIMGRID
2023Oct64.7°F61.1°F+3.6°NCLIMGRID
2023Nov56.6°F53.4°F+3.2°NCLIMGRID
2023Dec52.4°F47.2°F+5.3°NCLIMGRID
2024Jan51.4°F46.6°F+4.8°NCLIMGRID
2024Feb52.3°F51.2°F+1.2°NCLIMGRID
2024Mar54.2°F53.2°F+1.0°NCLIMGRID
2024Apr57.8°F55.9°F+1.9°NCLIMGRID
2024May61.7°F60.4°F+1.3°NCLIMGRID
2024Jun68.1°F64.7°F+3.4°NCLIMGRID
2024Jul71.6°F66.1°F+5.5°NCLIMGRID
2024Aug68.2°F66.1°F+2.1°NCLIMGRID
2024Sep67.7°F65.5°F+2.2°NCLIMGRID
2024Oct66.5°F61.1°F+5.5°NCLIMGRID
2024Nov53.1°F53.4°F-0.3°NCLIMGRID
2024Dec51.5°F47.2°F+4.3°NCLIMGRID
2025Jan49.0°F46.6°F+2.5°NCLIMGRID
2025Feb51.3°F51.2°F+0.2°NCLIMGRID
2025Mar53.4°F53.2°F+0.2°NCLIMGRID
2025Apr57.9°F55.9°F+2.0°NCLIMGRID
2025May63.0°F60.4°F+2.6°NCLIMGRID
2025Jun64.2°F64.7°F-0.5°NCLIMGRID
2025Jul64.5°F66.1°F-1.6°NCLIMGRID
2025Aug68.7°F66.1°F+2.6°NCLIMGRID
2025Sep68.0°F65.5°F+2.5°NCLIMGRID
2025Oct61.6°F61.1°F+0.5°NCLIMGRID
2025Nov56.3°F53.4°F+2.9°NCLIMGRID
2025Dec48.9°F47.2°F+1.7°NCLIMGRID
2026Jan51.2°F46.6°F+4.6°NCLIMGRID
2026Feb54.8°F51.2°F+3.6°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
January46.6°F26/26
February51.2°F26/26
March53.2°F26/26
April55.9°F26/26
May60.4°F26/26
June64.7°F26/26
July66.1°F26/26
August66.1°F26/26
September65.5°F26/26
October61.1°F26/26
November53.4°F26/26
December47.2°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 Vallejo, California getting warmer?

Based on 96+ years of NOAA temperature records, Vallejo has warmed at a rate of approximately 0.29°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 Vallejo?

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

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

How are the climate visualizations for Vallejo created?

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

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

Wear Vallejo's Climate Story

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