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How much has Vacaville warmed?

Each stripe below is one year of average temperature in Solano County, from 1895 on the left to 2025 on the right. Blue years were cooler than the 20th-century average of 59.7°F, and red years were warmer.

1895: -0.4°F1896: +0.6°F1897: -0.5°F1898: 0.0°F1899: -0.1°F1900: +0.7°F1901: +0.1°F1902: -0.6°F1903: -0.6°F1904: -0.1°F1905: -0.5°F1906: +0.4°F1907: -0.4°F1908: -0.8°F1909: -0.9°F1910: -0.4°F1911: -2.0°F1912: -1.0°F1913: +0.3°F1914: -0.1°F1915: +0.3°F1916: -0.7°F1917: 0.0°F1918: -0.4°F1919: -1.2°F1920: -0.9°F1921: -0.3°F1922: -1.3°F1923: -0.6°F1924: -0.6°F1925: -0.5°F1926: +0.8°F1927: -0.6°F1928: -0.3°F1929: -0.6°F1930: -0.7°F1931: +1.2°F1932: -0.2°F1933: -0.6°F1934: +2.1°F1935: -0.6°F1936: +1.2°F1937: -0.3°F1938: -0.5°F1939: +0.8°F1940: +0.7°F1941: -0.1°F1942: -0.7°F1943: +0.3°F1944: -0.7°F1945: -0.1°F1946: -1.6°F1947: -0.3°F1948: -2.1°F1949: -1.3°F1950: +0.4°F1951: -0.7°F1952: -0.6°F1953: -0.2°F1954: -0.9°F1955: -1.2°F1956: -0.8°F1957: +0.0°F1958: +1.5°F1959: +1.8°F1960: +0.4°F1961: +0.1°F1962: -0.6°F1963: -1.2°F1964: -0.4°F1965: -0.8°F1966: +0.7°F1967: -0.1°F1968: +0.3°F1969: +0.2°F1970: +0.9°F1971: -1.0°F1972: -0.5°F1973: +0.4°F1974: +0.1°F1975: -1.1°F1976: +0.5°F1977: +0.4°F1978: +0.8°F1979: +0.7°F1980: +0.1°F1981: +1.6°F1982: -1.2°F1983: +0.7°F1984: +1.3°F1985: -0.4°F1986: +1.4°F1987: +1.0°F1988: +1.5°F1989: -0.1°F1990: +0.9°F1991: +0.8°F1992: +2.1°F1993: +0.9°F1994: -0.1°F1995: +1.8°F1996: +2.3°F1997: +2.5°F1998: -0.2°F1999: +0.2°F2000: +1.0°F2001: +1.9°F2002: +1.1°F2003: +1.8°F2004: +1.8°F2005: +1.3°F2006: +1.0°F2007: +1.2°F2008: +1.3°F2009: +1.1°F2010: +0.3°F2011: -0.2°F2012: +1.3°F2013: +1.8°F2014: +3.8°F2015: +3.1°F2016: +2.2°F2017: +2.4°F2018: +1.9°F2019: +1.9°F2020: +3.4°F2021: +2.2°F2022: +2.4°F2023: +1.0°F2024: +3.5°F2025: +1.9°F
1895Vacaville, yearly average temperature2025

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Last 10 years
+2.3°F2016-2025 vs the 1901-2000 average
Warmest year
2024then 2020, 2015, 2014
Coldest year
1948in the 1895-2025 record
20th-century average
59.7°Fall months, Solano County

Decade by decade

-0.1°1890s
-0.3°1900s
-0.5°1910s
-0.5°1920s
+0.2°1930s
-0.6°1940s
-0.1°1950s
-0.2°1960s
+0.1°1970s
+0.6°1980s
+1.1°1990s
+1.4°2000s
+1.8°2010s
+2.4°2020-25

Average difference from the 1901-2000 average, by decade. The 2020s cover 2020 to 2025.

Nearby cities

See which cities have warmed the most in our warming ranking, or today's normal weather month by month in Vacaville.

Frequently asked questions

How much warmer is Vacaville than it used to be?

In Solano County, the ten years from 2016 to 2025 averaged 2.3°F warmer than the 20th-century average of 59.7°F, according to NOAA's county temperature records.

What was the warmest year on record in Vacaville?

The warmest years in NOAA's county record are 2024, 2020, 2015, 2014 and 1997. The coldest was 1948.

What are climate stripes?

Each stripe is one year. Its color shows how that year's average temperature compares with the long-term average: blue for cooler, red for warmer, darker for bigger differences. The design comes from climate scientist Ed Hawkins.

Source: NOAA National Centers for Environmental Information, nClimDiv county average temperature (version 1.0.0, October 2026 release). Values are county averages built from adjusted weather station records on a 5 km grid, so they describe Solano County as a whole rather than downtown Vacaville, and they correct for changes in stations and instruments over time. Incomplete years are left out. Stripes design by Ed Hawkins (#ShowYourStripes).