All-time weather records — Benton, IA

Record high
111.9°F
July 25, 1936
Record low
-29.9°F
January 12, 1912
Wettest day
6.35 in
September 19, 2010

Climate change signal in Benton

7.4%

of Benton's all-time daily heat records were set in the last decade (27 of 366 records since 2015).

6.8%

of all-time daily cold records were set in the last decade (25 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
26
27
1900s
26
38
1910s
45
27
1920s
20
29
1930s
91
27
1940s
19
32
1950s
29
25
1960s
13
50
1970s
8
8
1980s
23
25
1990s
11
27
2000s
17
11
2010s
22
30
2020s
16
10

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 1893, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 31, 1989 -29.9°F — Jan 12, 1912 1.80 in — Jan 20, 1904
February 80.1°F — Feb 24, 1930 -29.0°F — Feb 3, 1996 1.51 in — Feb 17, 1911
March 91.9°F — Mar 22, 2026 -20.0°F — Mar 5, 1960 3.48 in — Mar 19, 1982
April 91.9°F — Apr 29, 1910 5.0°F — Apr 5, 1920 4.55 in — Apr 24, 1897
May 102.9°F — May 30, 1934 21.9°F — May 3, 1903 4.10 in — May 15, 1943
June 105.1°F — Jun 6, 1933 36.0°F — Jun 3, 1969 5.60 in — Jun 5, 2010
July 111.9°F — Jul 25, 1936 41.0°F — Jul 29, 1982 5.50 in — Jul 20, 1990
August 111.0°F — Aug 9, 1934 37.0°F — Aug 10, 1917 5.15 in — Aug 1, 1932
September 105.1°F — Sep 5, 1913 24.1°F — Sep 29, 1899 6.35 in — Sep 19, 2010
October 93.0°F — Oct 1, 1897 0.0°F — Oct 30, 1925 4.00 in — Oct 31, 1974
November 82.0°F — Nov 1, 1938 -15.0°F — Nov 30, 1964 6.22 in — Nov 17, 1952
December 70.0°F — Dec 8, 1946 -27.9°F — Dec 24, 1989 3.40 in — Dec 15, 2007

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