All-time weather records — Gillett Grove, IA

Record high
107.1°F
July 31, 1955
Record low
-32.1°F
January 19, 1970
Wettest day
6.33 in
August 22, 1988

Climate change signal in Gillett Grove

14.8%

of Gillett Grove's all-time daily heat records were set in the last decade (54 of 366 records since 2015).

7.9%

of all-time daily cold records were set in the last decade (29 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 #
1940s
80
52
1950s
49
55
1960s
34
63
1970s
29
57
1980s
37
37
1990s
25
37
2000s
34
26
2010s
37
18
2020s
41
21

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 1941, the latest in 2026. Period of observation: 1941-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 25, 1944 -32.1°F — Jan 19, 1970 0.99 in — Jan 27, 1944
February 72.0°F — Feb 27, 2024 -32.1°F — Feb 9, 1972 1.52 in — Feb 27, 1948
March 90.0°F — Mar 22, 2026 -22.0°F — Mar 1, 1962 1.93 in — Mar 27, 2004
April 93.9°F — Apr 23, 1980 3.0°F — Apr 3, 1975 3.28 in — Apr 12, 2010
May 102.9°F — May 14, 2013 23.0°F — May 3, 1967 2.55 in — May 17, 1991
June 105.1°F — Jun 8, 1985 34.0°F — Jun 3, 1946 3.85 in — Jun 16, 1996
July 107.1°F — Jul 31, 1955 41.0°F — Jul 5, 1972 3.93 in — Jul 7, 1952
August 105.1°F — Aug 9, 1947 34.0°F — Aug 20, 1950 6.33 in — Aug 22, 1988
September 100.9°F — Sep 6, 1970 18.0°F — Sep 28, 1942 5.26 in — Sep 14, 2004
October 95.0°F — Oct 5, 1963 5.0°F — Oct 28, 1995 3.48 in — Oct 7, 1992
November 81.0°F — Nov 1, 1968 -17.0°F — Nov 14, 1959 2.56 in — Nov 9, 1977
December 68.0°F — Dec 1, 1998 -27.0°F — Dec 31, 1946 1.52 in — Dec 14, 2015

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