Number of Days Below 32 °F in Boulder by Year

This page contains a list of the number of days in each year that the low temperature fell below 32 degrees Fahrenheit in Boulder, Colorado, between 1893 and 2024.

Also see:

Which year had the most days below freezing?

Based on NOAA records, the year 1984 holds the Boulder record. There were 169 days with a low temperature below 32 degrees that year.

How many days below freezing so far?

As of April 23, there have been 76 days this year where the low temperature has fallen below 32 degrees Fahrenheit in Boulder, Colorado.

The last time it fell below 32° F was April 21, 2024.

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

Year	Rank	Days < 32 °F
2024	127	76
2023	47	129
2022	11	142
2021	50	128
2020	20	139
2019	7	145
2018	4	151
2017	126	79
2016	89	117
2015	104	110
2014	33	134
2013	7	145
2012	106	109
2011	65	122
2010	27	137
2009	62	123
2008	15	140
2007	82	119
2006	62	123
2005	78	120
2004	106	109
2003	65	122
2002	15	140
2001	39	132
2000	20	139
1999	65	122
1998	65	122
1997	27	137
1996	62	123
1995	78	120
1994	23	138
1993	23	138
1992	82	119
1991	31	136
1990	129	58
1989	127	76
1988	42	131
1987	44	130
1986	116	103
1985	9	144
1984	1	169
1983	114	106
1982	117	101
1981	120	100
1980	53	127
1979	58	124
1978	113	107
1977	74	121
1976	74	121
1975	57	125
1974	44	130
1973	23	138
1972	89	117
1971	47	129
1970	15	140
1969	39	132
1968	39	132
1967	65	122
1966	36	133
1965	112	108
1964	36	133
1963	82	119
1962	89	117
1961	33	134
1960	94	116
1959	14	141
1958	65	122
1957	100	113
1956	98	114
1955	44	130
1954	122	95
1953	115	105
1952	58	124
1951	27	137
1950	106	109
1949	94	116
1948	74	121
1947	53	127
1946	78	120
1945	42	131
1944	10	143
1943	78	120
1942	20	139
1941	33	134
1940	58	124
1939	82	119
1938	50	128
1937	15	140
1936	106	109
1935	2	158
1934	82	119
1933	102	111
1932	15	140
1931	32	135
1930	23	138
1929	11	142
1928	6	147
1927	11	142
1926	65	122
1925	55	126
1924	50	128
1923	5	149
1922	27	137
1921	74	121
1920	3	152
1919	65	122
1918	89	117
1917	65	122
1916	89	117
1915	55	126
1914	88	118
1913	36	133
1912	124	82
1911	106	109
1910	117	101
1909	96	115
1908	98	114
1907	102	111
1906	117	101
1905	104	110
1904	120	100
1903	58	124
1902	96	115
1901	106	109
1900	101	112
1899	82	119
1898	47	129
1897	130	45
1896	132	0
1895	123	86
1894	125	80
1893	131	43

Weather Station Details

Years	Station	Coordinates
1893–2024	Boulder	location