All-time weather records — Tripoli, IA

Record high
104.0°F
August 18, 1988
Record low
-32.1°F
January 16, 2009
Wettest day
5.53 in
May 17, 1999

Climate change signal in Tripoli

10.9%

of Tripoli's all-time daily heat records were set in the last decade (40 of 366 records since 2015).

6.3%

of all-time daily cold records were set in the last decade (23 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
34
11
1950s
62
60
1960s
37
54
1970s
25
59
1980s
45
57
1990s
39
44
2000s
43
43
2010s
72
29
2020s
9
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 1946, the latest in 2021. Period of observation: 1946-2021.

Records by month

Month Hottest day Coldest day Wettest day
January 62.1°F — Jan 27, 2002 -32.1°F — Jan 16, 2009 1.63 in — Jan 22, 2018
February 68.0°F — Feb 23, 2017 -32.1°F — Feb 2, 1996 1.55 in — Feb 18, 1961
March 84.0°F — Mar 30, 1986 -27.0°F — Mar 1, 1962 1.83 in — Mar 26, 2004
April 96.1°F — Apr 22, 1980 0.0°F — Apr 5, 1982 5.50 in — Apr 29, 1951
May 96.1°F — May 15, 2013 24.1°F — May 3, 2005 5.53 in — May 17, 1999
June 102.0°F — Jun 26, 1980 36.0°F — Jun 1, 1993 4.35 in — Jun 26, 1951
July 100.9°F — Jul 26, 2012 43.0°F — Jul 31, 1971 5.15 in — Jul 17, 1968
August 104.0°F — Aug 18, 1988 37.9°F — Aug 20, 1950 5.50 in — Aug 31, 1981
September 98.1°F — Sep 9, 1955 25.0°F — Sep 29, 1949 4.90 in — Sep 11, 2006
October 93.0°F — Oct 4, 1997 10.0°F — Oct 19, 1972 3.40 in — Oct 9, 1970
November 79.0°F — Nov 9, 1999 -15.0°F — Nov 26, 1977 3.10 in — Nov 1, 1991
December 64.9°F — Dec 4, 2012 -27.9°F — Dec 25, 2000 2.98 in — Dec 13, 2015

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