All-time weather records — Hewitt, WI

Record high
105.1°F
May 31, 1934
Record low
-36.9°F
January 23, 1963
Wettest day
5.04 in
September 7, 2015

Climate change signal in Hewitt

10.1%

of Hewitt's all-time daily heat records were set in the last decade (37 of 366 records since 2015).

1.9%

of all-time daily cold records were set in the last decade (7 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1910s
18
51
1920s
27
72
1930s
67
27
1940s
25
22
1950s
21
44
1960s
19
46
1970s
18
45
1980s
51
23
1990s
37
19
2000s
30
6
2010s
27
8
2020s
26
3

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1913, the latest in 2026. Period of observation: 1912-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.0°F — Jan 25, 1981 -36.9°F — Jan 23, 1963 1.12 in — Jan 12, 1960
February 68.0°F — Feb 28, 2024 -33.0°F — Feb 1, 1918 1.25 in — Feb 13, 1938
March 80.1°F — Mar 29, 1986 -27.9°F — Mar 1, 1962 2.30 in — Mar 14, 1990
April 91.0°F — Apr 22, 1980 -0.9°F — Apr 1, 1924 2.73 in — Apr 18, 2026
May 105.1°F — May 31, 1934 17.1°F — May 3, 2002 3.96 in — May 16, 1968
June 100.0°F — Jun 1, 1934 26.1°F — Jun 12, 1927 4.25 in — Jun 18, 1940
July 104.0°F — Jul 13, 1936 37.9°F — Jul 4, 1972 3.70 in — Jul 4, 1937
August 102.0°F — Aug 2, 1988 28.0°F — Aug 30, 1915 4.17 in — Aug 20, 1926
September 98.1°F — Sep 4, 2023 19.9°F — Sep 28, 1976 5.04 in — Sep 7, 2015
October 90.0°F — Oct 1, 1976 1.0°F — Oct 30, 1925 2.88 in — Oct 5, 2013
November 80.1°F — Nov 10, 1930 -18.0°F — Nov 24, 1950 2.45 in — Nov 10, 1919
December 63.0°F — Dec 4, 1998 -29.0°F — Dec 26, 1914 1.60 in — Dec 23, 2007

Click a month to see every daily record for that month in Hewitt.