All-time weather records — Newton, IA

Record high
106.0°F
July 26, 1894
Record low
-31.0°F
January 10, 1982
Wettest day
5.37 in
September 3, 2018

Climate change signal in Newton

12.6%

of Newton's all-time daily heat records were set in the last decade (46 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
36
67
1940s
6
5
1950s
52
41
1960s
50
46
1970s
23
85
1980s
54
42
1990s
36
21
2000s
33
25
2010s
54
25
2020s
22
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 1893, the latest in 2024. Period of observation: 1893-2024.

Records by month

Month Hottest day Coldest day Wettest day
January 68.0°F — Jan 27, 2002 -31.0°F — Jan 10, 1982 1.59 in — Jan 12, 1960
February 77.0°F — Feb 27, 2024 -27.9°F — Feb 9, 1899 1.22 in — Feb 18, 1961
March 90.0°F — Mar 29, 1986 -18.0°F — Mar 1, 1962 1.80 in — Mar 3, 1970
April 96.1°F — Apr 7, 1988 9.0°F — Apr 6, 1982 3.24 in — Apr 29, 1974
May 99.0°F — May 28, 2018 28.0°F — May 3, 2011 3.14 in — May 26, 2013
June 102.0°F — Jun 21, 1988 36.0°F — Jun 3, 1992 4.36 in — Jun 17, 1990
July 106.0°F — Jul 26, 1894 44.1°F — Jul 5, 1972 3.50 in — Jul 31, 1896
August 105.1°F — Aug 17, 1988 37.0°F — Aug 20, 1950 4.08 in — Aug 5, 1970
September 100.0°F — Sep 10, 2013 27.0°F — Sep 30, 1972 5.37 in — Sep 3, 2018
October 95.0°F — Oct 5, 1963 12.9°F — Oct 19, 1972 4.02 in — Oct 2, 2019
November 80.1°F — Nov 14, 1999 -8.0°F — Nov 26, 1898 3.29 in — Nov 4, 2003
December 73.9°F — Dec 16, 2021 -22.0°F — Dec 23, 1989 2.29 in — Dec 14, 2015

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