Number of Days of 80 °F in Janesville by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 80 degrees Fahrenheit in Janesville, Wisconsin, between 1893 and 2024.

Also see:

Which year had the most 80° days?

Based on NOAA records, the year 1953 holds the record for the most 80 °F days in Janesville history. There were 111 days with a high temperature of at least 80 degrees that year.

How many so far this year (2024)?

As of April 30, there have been 1 days this year where the high temperature has reached at least 80 degrees Fahrenheit in Janesville, Wisconsin.

The last time it reached at least 80° F was April 15, 2024.

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

Year	Rank	Days >= 80 °F
2024	87	1
2023	26	93
2022	43	85
2021	8	103
2020	48	83
2019	72	69
2018	26	93
2017	40	86
2016	9	101
2015	72	69
2014	57	77
2013	63	75
2012	14	98
2011	40	86
2010	18	97
2009	80	50
2008	63	75
2007	14	98
2006	63	75
2005	23	96
2004	76	64
2003	53	80
2002	75	65
2001	50	82
2000	57	77
1999	51	81
1998	13	99
1997	68	73
1996	74	68
1995	29	92
1994	66	74
1993	78	59
1992	81	49
1991	18	97
1990	66	74
1989	57	77
1988	3	104
1987	82	22
1986	38	87
1985	37	89
1984	68	73
1983	56	79
1982	71	71
1981	40	86
1980	45	84
1979	24	94
1978	14	98
1977	9	101
1976	18	97
1975	45	84
1974	53	80
1973	45	84
1972	57	77
1971	11	100
1970	3	104
1969	18	97
1968	53	80
1967	62	76
1966	32	91
1965	32	91
1964	26	93
1963	2	105
1962	3	104
1961	38	87
1960	48	83
1959	11	100
1958	43	85
1957	51	81
1956	32	91
1955	3	104
1954	29	92
1953	1	111
1952	18	97
1951	77	62
1950	79	58
1949	36	90
1948	29	92
1947	32	91
1946	24	94
1945	68	73
1944	83	18
1943	88	0
1942	88	0
1941	88	0
1940	88	0
1939	88	0
1938	88	0
1937	88	0
1936	88	0
1935	88	0
1934	88	0
1933	88	0
1932	88	0
1931	88	0
1930	88	0
1929	88	0
1928	88	0
1927	88	0
1926	88	0
1925	88	0
1924	88	0
1923	88	0
1922	88	0
1921	88	0
1920	88	0
1919	88	0
1918	88	0
1917	86	9
1916	84	16
1915	85	13
1914	88	0
1913	88	0
1912	88	0
1911	88	0
1910	88	0
1909	88	0
1908	88	0
1907	88	0
1906	88	0
1905	88	0
1904	88	0
1903	88	0
1902	88	0
1901	88	0
1900	88	0
1899	88	0
1898	88	0
1897	88	0
1896	88	0
1895	3	104
1894	14	98
1893	57	77

Weather Station Details

Years	Station	Coordinates
1987–2024	Afton-Janesville WWTP	location
1893–1987	Janesville	location