Number of Days of 100 °F in Santa Rosa by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 100 degrees Fahrenheit in Santa Rosa, California, between 1902 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 2017 holds the record for the most 100 °F days in Santa Rosa history. There were 11 days with a high temperature of at least 100 degrees that year.

How many so far this year (2024)?

It has not reached 100 degrees Fahrenheit in Santa Rosa so far in 2024. As of April 30, the highest temperature this year is 81 °F.

The last time it reached at least 100° F was August 6, 2023.

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Days >= 100 °F
2024	105	0
2023	72	2
2022	8	8
2021	50	3
2020	7	9
2019	18	6
2018	85	1
2017	1	11
2016	85	1
2015	18	6
2014	85	1
2013	85	1
2012	50	3
2011	105	0
2010	38	4
2009	50	3
2008	8	8
2007	72	2
2006	27	5
2005	85	1
2004	85	1
2003	8	8
2002	27	5
2001	18	6
2000	27	5
1999	38	4
1998	27	5
1997	105	0
1996	85	1
1995	72	2
1994	105	0
1993	38	4
1992	105	0
1991	85	1
1990	105	0
1989	105	0
1988	38	4
1987	105	0
1986	105	0
1985	105	0
1984	85	1
1983	13	7
1982	50	3
1981	13	7
1980	18	6
1979	50	3
1978	72	2
1977	4	10
1976	1	11
1975	27	5
1974	50	3
1973	4	10
1972	18	6
1971	27	5
1970	27	5
1969	72	2
1968	38	4
1967	50	3
1966	27	5
1965	105	0
1964	38	4
1963	50	3
1962	85	1
1961	4	10
1960	50	3
1959	38	4
1958	13	7
1957	50	3
1956	72	2
1955	18	6
1954	18	6
1953	85	1
1952	38	4
1951	50	3
1950	13	7
1949	50	3
1948	72	2
1947	72	2
1946	38	4
1945	50	3
1944	27	5
1943	50	3
1942	105	0
1941	105	0
1940	105	0
1939	18	6
1938	105	0
1937	38	4
1936	8	8
1935	50	3
1934	38	4
1933	72	2
1932	50	3
1931	27	5
1930	85	1
1929	50	3
1928	72	2
1927	85	1
1926	72	2
1925	85	1
1924	50	3
1923	50	3
1922	72	2
1921	18	6
1920	85	1
1919	50	3
1918	85	1
1917	1	11
1916	105	0
1915	72	2
1914	85	1
1913	8	8
1912	85	1
1911	105	0
1910	85	1
1909	38	4
1908	105	0
1907	105	0
1906	85	1
1905	13	7
1904	50	3
1903	27	5
1902	50	3

Weather Station Details

Years	Station	Coordinates
1998–2024	Santa Rosa Sonoma County Airport	location
1902–1998	Santa Rosa	location