Average Temperature in Boulder by Year

This page contains a list of the average yearly high and low temperatures in Boulder, Colorado for each year between 1898 and 2023. It is based on NOAA data.

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What Was the Hottest Year Ever in Boulder?

1954 was the warmest year in the history of Boulder, Colorado. The average daily high temperature was 69.7 °F, and the average low was 42.3 °F.

What Was the Coldest Year Ever in Boulder?

1923 was the coolest year in the history of Boulder, Colorado. The average daily high temperature was 60.7 °F, and the average low was 36.5 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	71	65.1	37.5
2022	61	66.3	36.7
2021	27	66.9	38.2
2020	22	67.5	37.9
2019	96	64.5	36.3
2018	37	66.9	37.7
2017	9	68.0	39.1
2016	13	67.7	38.9
2015	24	66.3	38.9
2014	66	65.4	37.4
2013	87	64.6	37.1
2012	4	69.3	40.2
2011	53	65.9	37.6
2010	57	65.5	37.9
2009	90	64.1	37.0
2008	72	65.7	36.8
2007	38	66.3	38.1
2006	15	66.7	39.2
2005	29	66.1	38.9
2004	65	64.7	38.1
2003	28	66.2	38.8
2002	50	66.2	37.5
2001	30	66.0	38.9
2000	45	66.1	37.9
1999	33	66.4	38.3
1998	63	64.7	38.2
1997	94	63.4	37.6
1996	75	65.2	37.3
1995	81	64.4	37.5
1994	48	65.7	38.0
1993	116	62.2	36.4
1992	77	64.4	37.9
1991	78	63.9	38.3
1988	43	66.1	37.9
1987	58	65.2	38.2
1986	17	66.3	39.4
1985	102	64.2	36.1
1984	98	64.3	36.3
1982	74	64.8	37.7
1981	12	66.8	39.8
1980	21	66.9	38.6
1978	84	64.8	37.0
1977	32	66.4	38.3
1976	76	65.0	37.2
1975	92	64.2	36.9
1974	68	65.4	37.4
1973	100	63.5	36.9
1972	88	64.3	37.3
1971	89	63.8	37.5
1970	67	63.8	39.0
1969	52	64.6	39.0
1968	59	65.0	38.2
1967	46	65.2	38.7
1966	16	66.6	39.1
1965	51	64.7	39.0
1964	35	65.4	39.2
1963	6	66.9	40.4
1962	31	65.9	38.9
1961	69	64.0	38.7
1960	23	65.8	39.7
1959	73	64.7	37.8
1958	11	66.2	40.6
1957	34	64.9	39.8
1956	5	67.6	41.3
1955	26	65.9	39.2
1954	1	69.7	42.3
1953	2	67.8	42.0
1952	7	66.7	40.5
1951	82	63.8	38.1
1950	10	67.0	39.9
1949	14	66.4	39.7
1948	19	66.1	39.5
1947	40	65.2	39.2
1946	42	65.1	39.2
1945	103	62.6	37.5
1944	114	61.4	37.2
1943	55	64.9	38.6
1942	112	62.2	36.6
1941	119	60.2	37.4
1940	107	61.8	37.7
1939	64	63.9	38.9
1938	83	63.2	38.6
1937	109	62.4	37.0
1936	62	64.8	38.1
1935	97	64.6	36.0
1934	3	69.1	40.4
1933	8	67.2	40.0
1932	104	64.4	35.3
1931	41	66.0	38.3
1930	95	64.2	36.7
1929	117	62.9	35.4
1928	111	64.0	35.4
1927	93	65.2	35.8
1926	85	63.5	38.3
1925	80	63.9	38.2
1924	108	62.5	37.0
1923	120	60.7	36.5
1922	86	64.6	37.2
1921	25	66.4	38.8
1920	113	62.9	35.7
1919	18	65.8	39.8
1918	36	64.1	40.5
1917	79	63.3	38.8
1916	60	63.7	39.3
1915	110	62.2	37.2
1914	49	65.3	38.4
1913	118	62.0	36.0
1911	70	64.9	37.7
1909	115	60.0	38.7
1908	56	63.5	40.0
1907	47	63.5	40.3
1906	91	62.0	39.2
1905	101	61.4	39.0
1904	39	64.4	40.1
1903	99	61.9	38.5
1902	54	63.7	39.8
1901	44	64.3	39.8
1900	20	64.8	40.7
1899	106	61.7	37.9
1898	105	60.4	39.3

Weather Station Details

Years	Station	Coordinates
1893–2024	Boulder	location