All-time weather records — Palmyra, IL

Record high
113.0°F
July 15, 1936
Record low
-23.1°F
February 13, 1905
Wettest day
6.22 in
July 8, 1942

Climate change signal in Palmyra

1.1%

of Palmyra's all-time daily heat records were set in the last decade (4 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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
33
24
1900s
31
37
1910s
53
45
1920s
28
40
1930s
96
21
1940s
23
29
1950s
34
39
1960s
13
39
1970s
16
39
1980s
9
25
1990s
14
13
2000s
5
6
2010s
7
9
2020s
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 1893, the latest in 2022. Period of observation: 1893-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 73.9°F — Jan 23, 1909 -22.0°F — Jan 7, 1912 2.93 in — Jan 10, 1975
February 82.0°F — Feb 24, 1930 -23.1°F — Feb 13, 1905 2.84 in — Feb 6, 2008
March 91.0°F — Mar 21, 1907 -11.9°F — Mar 6, 1960 3.97 in — Mar 14, 1922
April 91.9°F — Apr 10, 1930 1.0°F — Apr 14, 1896 4.14 in — Apr 11, 1979
May 99.0°F — May 30, 1934 26.1°F — May 10, 1966 3.72 in — May 21, 2013
June 106.0°F — Jun 19, 1913 37.0°F — Jun 16, 1917 5.26 in — Jun 28, 1957
July 113.0°F — Jul 15, 1936 44.1°F — Jul 23, 1947 6.22 in — Jul 8, 1942
August 109.9°F — Aug 4, 1918 37.9°F — Aug 21, 1950 5.00 in — Aug 20, 1915
September 105.1°F — Sep 1, 1913 25.0°F — Sep 30, 1899 3.96 in — Sep 19, 1966
October 95.0°F — Oct 2, 1953 14.0°F — Oct 30, 1925 4.81 in — Oct 12, 1969
November 84.0°F — Nov 1, 1950 -4.0°F — Nov 25, 1950 4.08 in — Nov 1, 1946
December 73.9°F — Dec 3, 1970 -20.0°F — Dec 22, 1989 3.75 in — Dec 3, 1982

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