Number of Days of 100 °F in St. Louis 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 St. Louis, Missouri, between 1893 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 1936 holds the record for the most 100 °F days in St. Louis history. There were 34 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 St. Louis so far in 2024. As of April 26, the highest temperature this year is 89 °F.

The last time it reached at least 100° F was August 25, 2023.

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

Year	Rank	Days >= 100 °F
2024	76	0
2023	21	6
2022	17	7
2021	40	2
2020	76	0
2019	76	0
2018	55	1
2017	17	7
2016	55	1
2015	55	1
2014	55	1
2013	40	2
2012	4	21
2011	7	15
2010	29	4
2009	76	0
2008	76	0
2007	21	6
2006	21	6
2005	29	4
2004	76	0
2003	40	2
2002	40	2
2001	55	1
2000	55	1
1999	37	3
1998	76	0
1997	76	0
1996	76	0
1995	37	3
1994	76	0
1993	76	0
1992	76	0
1991	24	5
1990	24	5
1989	76	0
1988	11	12
1987	29	4
1986	40	2
1985	76	0
1984	24	5
1983	10	14
1982	76	0
1981	76	0
1980	5	18
1979	76	0
1978	76	0
1977	76	0
1976	76	0
1975	55	1
1974	76	0
1973	76	0
1972	55	1
1971	55	1
1970	55	1
1969	76	0
1968	76	0
1967	76	0
1966	17	7
1965	55	1
1964	40	2
1963	40	2
1962	40	2
1961	76	0
1960	76	0
1959	76	0
1958	76	0
1957	76	0
1956	55	1
1955	40	2
1954	3	22
1953	7	15
1952	12	10
1951	76	0
1950	76	0
1949	55	1
1948	55	1
1947	12	10
1946	40	2
1945	55	1
1944	40	2
1943	24	5
1942	55	1
1941	14	8
1940	37	3
1939	17	7
1938	29	4
1937	76	0
1936	1	34
1935	55	1
1934	2	23
1933	29	4
1932	55	1
1931	14	8
1930	5	18
1929	76	0
1928	76	0
1927	76	0
1926	40	2
1925	29	4
1924	76	0
1923	76	0
1922	55	1
1921	76	0
1920	76	0
1919	55	1
1918	14	8
1917	76	0
1916	76	0
1915	76	0
1914	24	5
1913	29	4
1912	76	0
1911	40	2
1910	76	0
1909	76	0
1908	76	0
1907	76	0
1906	76	0
1905	76	0
1904	76	0
1903	76	0
1902	76	0
1901	7	15
1900	76	0
1899	29	4
1898	76	0
1897	55	1
1896	40	2
1895	76	0
1894	40	2
1893	76	0

Weather Station Details

Years	Station	Coordinates
1939–2024	St. Louis International Airport	location
1893–1938	St. Louis	location