All-time weather records — St. Donatus, IA

Record high
108.0°F
July 24, 1901
Record low
-32.1°F
January 31, 2019
Wettest day
13.45 in
July 28, 2011

Climate change signal in St. Donatus

29.5%

of St. Donatus's all-time daily heat records were set in the last decade (108 of 366 records since 2015).

19.7%

of all-time daily cold records were set in the last decade (72 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
116
166
1900s
73
61
1920s
·
·
1930s
·
·
1940s
·
·
1950s
·
·
1960s
·
·
1970s
·
·
1980s
·
·
1990s
·
·
2000s
·
·
2010s
160
130
2020s
17
9

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 1895, the latest in 2021. Period of observation: 1895-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 64.0°F — Jan 29, 2013 -32.1°F — Jan 31, 2019 2.50 in — Jan 15, 1960
February 72.0°F — Feb 23, 2017 -29.9°F — Feb 1, 2019 2.15 in — Feb 27, 1998
March 80.1°F — Mar 16, 2012 -16.1°F — Mar 3, 2014 2.77 in — Mar 31, 1998
April 89.1°F — Apr 21, 1902 12.0°F — Apr 2, 1899 3.04 in — Apr 18, 2013
May 93.9°F — May 28, 2014 23.0°F — May 9, 2020 3.47 in — May 24, 1896
June 99.0°F — Jun 26, 1901 34.0°F — Jun 1, 1897 6.00 in — Jun 4, 2002
July 108.0°F — Jul 24, 1901 43.0°F — Jul 8, 1896 13.45 in — Jul 28, 2011
August 100.0°F — Aug 14, 1895 37.0°F — Aug 20, 1897 11.69 in — Aug 22, 2002
September 97.0°F — Sep 10, 1895 15.1°F — Sep 30, 1899 4.80 in — Sep 3, 1973
October 88.0°F — Oct 15, 1897 14.0°F — Oct 30, 1895 3.10 in — Oct 29, 1896
November 73.9°F — Nov 12, 2015 -6.0°F — Nov 27, 1898 2.89 in — Nov 17, 1952
December 70.0°F — Dec 16, 2021 -18.0°F — Dec 18, 1897 2.47 in — Dec 2, 1982

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