All-time weather records — Granton, WI

Record high
106.0°F
July 13, 1936
Record low
-47.9°F
January 30, 1951
Wettest day
5.00 in
August 8, 1980

Climate change signal in Granton

10.4%

of Granton's all-time daily heat records were set in the last decade (38 of 366 records since 2015).

0.8%

of all-time daily cold records were set in the last decade (3 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 #
1890s
14
39
1900s
25
31
1910s
32
30
1920s
22
28
1930s
44
13
1940s
36
14
1950s
19
36
1960s
18
37
1970s
10
34
1980s
31
28
1990s
32
52
2000s
30
20
2010s
29
3
2020s
24
1

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 1893, the latest in 2025. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.0°F — Jan 25, 1944 -47.9°F — Jan 30, 1951 1.75 in — Jan 28, 1914
February 62.1°F — Feb 20, 2017 -45.9°F — Feb 10, 1899 1.78 in — Feb 22, 1922
March 82.9°F — Mar 29, 1986 -38.9°F — Mar 1, 1962 2.15 in — Mar 26, 1906
April 91.0°F — Apr 16, 2002 0.0°F — Apr 19, 1998 2.44 in — Apr 14, 2026
May 105.1°F — May 31, 1934 15.1°F — May 4, 1976 3.09 in — May 16, 1894
June 104.0°F — Jun 29, 1910 21.9°F — Jun 4, 1998 4.83 in — Jun 27, 1986
July 106.0°F — Jul 13, 1936 0.0°F — Jul 4, 2003 4.38 in — Jul 1, 1978
August 102.9°F — Aug 25, 1948 30.9°F — Aug 30, 1915 5.00 in — Aug 8, 1980
September 98.1°F — Sep 2, 1937 14.0°F — Sep 30, 1899 4.13 in — Sep 22, 2016
October 91.9°F — Oct 1, 1976 -8.0°F — Oct 19, 1913 3.80 in — Oct 27, 1900
November 81.0°F — Nov 1, 1950 -16.1°F — Nov 25, 1950 2.27 in — Nov 10, 1975
December 64.0°F — Dec 6, 2001 -36.0°F — Dec 15, 1901 1.53 in — Dec 10, 1911

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