All-time weather records — Mackinaw, IL

Record high
100.9°F
June 27, 1944
Record low
-14.1°F
January 20, 1943
Wettest day
6.00 in
September 20, 1986

Climate change signal in Mackinaw

0%

of Mackinaw's all-time daily heat records were set in the last decade (0 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 #
1940s
366
366
1950s
·
·
1960s
·
·
1970s
·
·
1980s
·
·
1990s
·
·
2000s
·
·
2010s
·
·
2020s
·
·

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 1942, the latest in 1945. Period of observation: 1940-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 64.0°F — Jan 27, 1944 -14.1°F — Jan 20, 1943 3.53 in — Jan 1, 1965
February 64.0°F — Feb 9, 1943 -9.9°F — Feb 12, 1944 2.12 in — Feb 10, 1960
March 81.0°F — Mar 16, 1945 -14.1°F — Mar 8, 1943 2.30 in — Mar 5, 1964
April 78.1°F — Apr 8, 1943 19.9°F — Apr 3, 1943 3.14 in — Apr 24, 1950
May 93.9°F — May 30, 1944 28.9°F — May 6, 1944 2.86 in — May 20, 1984
June 100.9°F — Jun 27, 1944 39.9°F — Jun 7, 1944 3.98 in — Jun 2, 1980
July 98.1°F — Jul 25, 1943 45.0°F — Jul 21, 1944 5.01 in — Jul 9, 2003
August 100.0°F — Aug 10, 1944 44.1°F — Aug 24, 1942 4.18 in — Aug 3, 1943
September 93.9°F — Sep 2, 1942 28.0°F — Sep 28, 1942 6.00 in — Sep 20, 1986
October 86.0°F — Oct 6, 1944 19.9°F — Oct 26, 1942 4.30 in — Oct 3, 1986
November 75.9°F — Nov 2, 1944 9.0°F — Nov 17, 1943 2.51 in — Nov 27, 1990
December 60.1°F — Dec 5, 1943 -6.0°F — Dec 26, 1944 3.84 in — Dec 21, 1949

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