All-time weather records — New London, IA

Record high
114.1°F
July 15, 1936
Record low
-27.0°F
January 16, 2009
Wettest day
7.20 in
June 10, 1905

Climate change signal in New London

7.7%

of New London's all-time daily heat records were set in the last decade (28 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
10
7
1900s
19
43
1910s
34
47
1920s
29
29
1930s
82
19
1940s
28
28
1950s
35
35
1960s
19
35
1970s
10
25
1980s
25
28
1990s
18
20
2000s
19
6
2010s
20
40
2020s
18
4

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 1899, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 23, 1909 -27.0°F — Jan 16, 2009 1.99 in — Jan 19, 1907
February 79.0°F — Feb 28, 2024 -27.0°F — Feb 3, 1996 2.00 in — Feb 9, 2001
March 90.0°F — Mar 22, 2026 -15.0°F — Mar 1, 1962 3.00 in — Mar 13, 2006
April 91.9°F — Apr 10, 1930 9.0°F — Apr 6, 1982 4.23 in — Apr 24, 1950
May 102.0°F — May 31, 1934 23.0°F — May 7, 1931 4.00 in — May 14, 2001
June 102.0°F — Jun 25, 1988 36.0°F — Jun 22, 1902 7.20 in — Jun 10, 1905
July 114.1°F — Jul 15, 1936 43.0°F — Jul 4, 1967 3.69 in — Jul 3, 1931
August 108.0°F — Aug 8, 1934 37.9°F — Aug 31, 1915 6.10 in — Aug 29, 2018
September 100.9°F — Sep 1, 1953 23.0°F — Sep 28, 1942 5.53 in — Sep 13, 1961
October 96.1°F — Oct 2, 1953 9.0°F — Oct 28, 1925 3.40 in — Oct 10, 1954
November 81.0°F — Nov 1, 1933 -5.1°F — Nov 29, 1976 2.85 in — Nov 1, 1984
December 73.9°F — Dec 16, 2021 -25.1°F — Dec 23, 1989 2.52 in — Dec 26, 1942

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