Number of Days Below 0 °F in Boulder by Year

This page contains a list of the number of days in each year that the low temperature fell below 0 degrees Fahrenheit in Boulder, Colorado, between 1893 and 2024.

Also see:

Which year had the most days below 0°?

Based on NOAA records, the year 1916 holds the Boulder record. There were 15 days with a low temperature below 0 degrees that year.

How many days below 0° so far?

As of April 25, there have been 4 days this year where the low temperature has fallen below 0 degrees Fahrenheit in Boulder, Colorado.

The last time it fell below 0° F was January 16, 2024.

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

Year	Rank	Days < 0 °F
2024	56	4
2023	56	4
2022	26	7
2021	74	3
2020	99	1
2019	56	4
2018	85	2
2017	99	1
2016	74	3
2015	99	1
2014	20	8
2013	26	7
2012	117	0
2011	26	7
2010	85	2
2009	56	4
2008	56	4
2007	45	5
2006	74	3
2005	85	2
2004	45	5
2003	56	4
2002	74	3
2001	99	1
2000	117	0
1999	117	0
1998	37	6
1997	56	4
1996	5	12
1995	99	1
1994	85	2
1993	26	7
1992	99	1
1991	85	2
1990	37	6
1989	15	9
1988	85	2
1987	85	2
1986	85	2
1985	11	10
1984	45	5
1983	20	8
1982	56	4
1981	85	2
1980	74	3
1979	45	5
1978	99	1
1977	74	3
1976	56	4
1975	56	4
1974	11	10
1973	56	4
1972	5	12
1971	56	4
1970	74	3
1969	117	0
1968	45	5
1967	99	1
1966	99	1
1965	74	3
1964	85	2
1963	15	9
1962	5	12
1961	45	5
1960	45	5
1959	56	4
1958	117	0
1957	74	3
1956	99	1
1955	99	1
1954	99	1
1953	117	0
1952	117	0
1951	26	7
1950	56	4
1949	20	8
1948	26	7
1947	117	0
1946	99	1
1945	117	0
1944	117	0
1943	26	7
1942	15	9
1941	117	0
1940	20	8
1939	74	3
1938	45	5
1937	15	9
1936	8	11
1935	74	3
1934	117	0
1933	45	5
1932	8	11
1931	85	2
1930	2	14
1929	15	9
1928	85	2
1927	37	6
1926	45	5
1925	117	0
1924	4	13
1923	37	6
1922	56	4
1921	99	1
1920	26	7
1919	11	10
1918	26	7
1917	26	7
1916	1	15
1915	56	4
1914	37	6
1913	37	6
1912	117	0
1911	37	6
1910	26	7
1909	11	10
1908	85	2
1907	99	1
1906	99	1
1905	20	8
1904	117	0
1903	56	4
1902	20	8
1901	56	4
1900	37	6
1899	2	14
1898	85	2
1897	99	1
1896	117	0
1895	8	11
1894	45	5
1893	99	1

Weather Station Details

Years	Station	Coordinates
1893–2024	Boulder	location