Average Temperature in Connecticut by Year

This page is a list of the average statewide temperature in the U.S. state of Connecticut for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Hottest Year in Connecticut History?

2012 was the warmest year in Connecticut history. Statewide, the average daily high temperature was 62.2 °F, and the average low was 42.6 °F.

What Was the Coldest Year in Connecticut History?

1904 was the coolest year in Connecticut history. Statewide, the average daily high temperature was 54.8 °F, and the average low was 33.8 °F.

Click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	2	62.1	42.5
2022	8	61.4	40.7
2021	6	60.9	41.9
2020	3	61.7	41.9
2019	21	59.4	40.2
2018	14	60.0	41.6
2017	12	60.7	41.2
2016	3	62.2	41.3
2015	21	60.4	39.2
2014	46	58.6	38.7
2013	21	59.6	40.0
2012	1	62.2	42.6
2011	12	60.7	41.0
2010	6	61.2	41.4
2009	41	58.5	39.1
2008	24	59.9	39.5
2007	26	59.8	39.2
2006	8	61.1	41.1
2005	26	59.8	39.2
2004	41	58.6	38.9
2003	66	57.9	38.4
2002	16	60.7	40.2
2001	19	60.9	39.6
2000	54	58.6	38.4
1999	14	61.5	40.1
1998	5	61.6	41.6
1997	51	58.8	38.5
1996	57	58.1	38.6
1995	35	59.3	38.8
1994	38	59.4	38.4
1993	51	59.0	38.3
1992	90	57.6	37.8
1991	11	61.5	40.4
1990	8	61.2	40.9
1989	77	58.2	37.7
1988	61	58.9	37.8
1987	41	59.2	38.4
1986	54	58.7	38.4
1985	46	58.9	38.4
1984	35	59.0	38.9
1983	28	59.6	39.2
1982	77	58.5	37.3
1981	57	58.6	38.2
1980	77	58.5	37.4
1979	41	58.4	39.3
1978	115	57.1	36.3
1977	66	58.3	38.0
1976	96	58.2	37.0
1975	34	58.9	39.2
1974	66	58.5	37.9
1973	20	60.2	39.9
1972	101	57.0	37.5
1971	61	58.4	38.1
1970	85	57.8	37.7
1969	72	57.8	38.2
1968	90	58.2	37.3
1967	108	57.1	37.1
1966	72	58.6	37.3
1965	99	58.1	36.9
1964	72	59.0	37.0
1963	105	58.1	36.3
1962	112	57.3	36.2
1961	61	58.4	38.2
1960	72	58.4	37.6
1959	31	59.5	38.9
1958	116	56.2	37.1
1957	31	60.0	38.4
1956	96	57.6	37.6
1955	46	58.8	38.5
1954	46	58.8	38.6
1953	16	61.1	40.0
1952	28	59.4	39.3
1951	35	59.2	38.8
1950	85	58.0	37.7
1949	16	61.2	39.9
1948	85	58.5	37.1
1947	77	58.2	37.5
1946	38	59.8	37.9
1945	61	58.5	38.0
1944	66	58.8	37.7
1943	101	57.7	37.0
1942	61	58.3	38.2
1941	54	59.3	37.6
1940	125	55.5	36.0
1939	85	58.1	37.4
1938	38	59.1	38.7
1937	46	58.8	38.6
1936	90	57.9	37.5
1935	101	57.4	37.2
1934	105	57.6	36.9
1933	57	58.3	38.5
1932	41	59.2	38.4
1931	25	59.8	39.4
1930	51	59.1	38.1
1929	90	58.2	37.2
1928	85	57.5	38.1
1927	77	58.0	37.8
1926	126	55.9	35.4
1925	77	58.5	37.4
1924	120	57.0	35.6
1923	112	57.6	35.9
1922	77	58.2	37.5
1921	30	60.1	38.6
1920	120	56.4	36.5
1919	72	58.1	37.9
1918	110	57.7	36.0
1917	128	54.8	34.7
1916	120	56.6	36.4
1915	77	58.0	37.8
1914	120	56.9	35.9
1913	31	59.8	38.6
1912	116	57.1	36.0
1911	90	58.0	37.3
1910	96	58.0	37.1
1909	100	57.6	37.1
1908	66	58.7	37.7
1907	126	56.0	35.2
1906	90	58.0	37.3
1905	124	56.9	35.7
1904	129	54.8	33.8
1903	110	57.2	36.6
1902	105	57.5	36.9
1901	116	56.4	36.8
1900	57	59.1	37.7
1899	109	57.5	36.6
1898	66	57.9	38.5
1897	101	57.2	37.4
1896	112	56.8	36.8
1895	116	57.1	36.1