All-time weather records — Masonville, IA

Record high
102.0°F
July 26, 2012
Record low
-36.0°F
January 16, 2009
Wettest day
5.69 in
September 23, 2016

Climate change signal in Masonville

24.9%

of Masonville's all-time daily heat records were set in the last decade (91 of 366 records since 2015).

18.3%

of all-time daily cold records were set in the last decade (67 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 #
1970s
26
46
1980s
79
98
1990s
52
69
2000s
70
50
2010s
79
73
2020s
60
30

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 1976, the latest in 2026. Period of observation: 1976-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 61.0°F — Jan 27, 2002 -36.0°F — Jan 16, 2009 2.90 in — Jan 3, 1986
February 72.0°F — Feb 27, 2024 -34.1°F — Feb 1, 2019 1.83 in — Feb 22, 1981
March 87.1°F — Mar 30, 1986 -22.0°F — Mar 1, 2015 2.91 in — Mar 31, 1998
April 97.0°F — Apr 22, 1980 -9.0°F — Apr 6, 1982 3.01 in — Apr 13, 1991
May 95.0°F — May 28, 2018 19.0°F — May 3, 2005 4.80 in — May 30, 2008
June 100.9°F — Jun 22, 1988 35.1°F — Jun 1, 1993 4.03 in — Jun 4, 2002
July 102.0°F — Jul 26, 2012 42.1°F — Jul 7, 1984 4.06 in — Jul 26, 1980
August 102.0°F — Aug 1, 1988 37.9°F — Aug 21, 2004 5.57 in — Aug 2, 1981
September 97.0°F — Sep 4, 2023 23.0°F — Sep 29, 1984 5.69 in — Sep 23, 2016
October 93.0°F — Oct 4, 1997 10.9°F — Oct 30, 1988 3.77 in — Oct 8, 2007
November 79.0°F — Nov 9, 1999 -16.1°F — Nov 26, 1977 3.54 in — Nov 4, 2003
December 70.0°F — Dec 16, 2021 -26.0°F — Dec 19, 1985 1.82 in — Dec 14, 2015

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