Number of Days of 90 °F in Castle Rock by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 90 degrees Fahrenheit in Castle Rock, Colorado, between 1893 and 2024.

Also see:

Which year had the most 90° days?

Based on NOAA records, the year 2020 holds the record for the most 90 °F days in Castle Rock history. There were 73 days with a high temperature of at least 90 degrees that year.

How many so far this year (2024)?

It has not reached 90 degrees Fahrenheit in Castle Rock so far in 2024. As of April 25, the highest temperature this year is 74 °F.

The last time it reached at least 90° F was September 2, 2023.

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

Year	Rank	Days >= 90 °F
2024	97	0
2023	49	18
2022	3	45
2021	2	69
2020	1	73
2019	8	36
2018	37	21
2017	37	21
2016	43	19
2015	54	16
2014	69	9
2013	16	29
2012	6	40
2011	26	25
2010	33	22
2009	93	1
2008	31	23
2007	29	24
2006	43	19
2005	41	20
2004	77	7
2003	12	32
2002	10	35
2001	43	19
2000	26	25
1999	81	6
1998	56	15
1997	81	6
1996	52	17
1995	18	28
1994	18	28
1993	63	10
1992	87	3
1991	73	8
1990	63	10
1989	63	10
1988	73	8
1987	83	5
1986	69	9
1985	97	0
1984	73	8
1983	26	25
1982	49	18
1981	15	30
1980	7	38
1979	12	32
1978	10	35
1977	24	26
1976	33	22
1975	52	17
1974	59	12
1973	56	15
1972	69	9
1971	43	19
1970	37	21
1969	37	21
1968	58	13
1967	85	4
1966	29	24
1965	63	10
1964	18	28
1963	18	28
1962	33	22
1961	97	0
1960	97	0
1959	97	0
1958	97	0
1957	97	0
1956	97	0
1955	97	0
1954	97	0
1953	97	0
1952	97	0
1951	97	0
1950	97	0
1949	97	0
1948	97	0
1947	97	0
1946	97	0
1945	97	0
1944	97	0
1943	97	0
1942	97	0
1941	97	0
1940	97	0
1939	97	0
1938	97	0
1937	97	0
1936	97	0
1935	97	0
1934	97	0
1933	97	0
1932	97	0
1931	97	0
1930	97	0
1929	60	11
1928	54	16
1927	77	7
1926	85	4
1925	97	0
1924	4	41
1923	87	3
1922	31	23
1921	77	7
1920	87	3
1919	97	0
1918	87	3
1917	83	5
1916	63	10
1915	87	3
1914	92	2
1913	49	18
1912	77	7
1911	43	19
1910	8	36
1909	93	1
1908	93	1
1907	69	9
1906	33	22
1905	93	1
1904	60	11
1903	22	27
1902	4	41
1901	16	29
1900	60	11
1899	22	27
1898	24	26
1897	41	20
1896	73	8
1895	63	10
1894	43	19
1893	12	32

Weather Station Details

Years	Station	Coordinates
1893–2024	Castle Rock	location