All-time weather records — Luther, IA

Record high
102.0°F
August 17, 1988
Record low
-27.9°F
February 2, 1996
Wettest day
5.59 in
August 22, 1988

Climate change signal in Luther

25.7%

of Luther's all-time daily heat records were set in the last decade (94 of 366 records since 2015).

10.7%

of all-time daily cold records were set in the last decade (39 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 #
1960s
37
63
1970s
51
100
1980s
71
63
1990s
35
50
2000s
45
30
2010s
62
34
2020s
65
26

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 1964, the latest in 2026. Period of observation: 1964-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 26, 2002 -26.0°F — Jan 21, 1970 1.27 in — Jan 3, 2023
February 75.9°F — Feb 26, 2024 -27.9°F — Feb 2, 1996 2.00 in — Feb 21, 1976
March 90.0°F — Mar 21, 2026 -11.9°F — Mar 2, 2014 1.70 in — Mar 31, 2008
April 97.0°F — Apr 22, 1980 8.1°F — Apr 3, 1975 3.00 in — Apr 27, 2009
May 100.0°F — May 25, 1967 27.0°F — May 2, 1970 4.71 in — May 13, 1970
June 100.9°F — Jun 8, 1985 37.9°F — Jun 3, 1969 4.23 in — Jun 14, 2018
July 100.9°F — Jul 4, 1977 44.1°F — Jul 30, 1971 4.65 in — Jul 9, 1993
August 102.0°F — Aug 17, 1988 39.9°F — Aug 31, 1967 5.59 in — Aug 22, 1988
September 98.1°F — Sep 1, 2000 28.9°F — Sep 22, 1974 2.96 in — Sep 1, 2010
October 95.0°F — Oct 3, 1997 10.9°F — Oct 27, 2020 2.81 in — Oct 11, 1973
November 80.1°F — Nov 8, 2006 -7.1°F — Nov 26, 1977 2.00 in — Nov 1, 1992
December 73.0°F — Dec 15, 2021 -24.0°F — Dec 23, 1989 1.99 in — Dec 14, 2015

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