All-time weather records — Colchester, IL
Climate change signal in Colchester
of Colchester's all-time daily heat records were set in the last decade (0 of 366 records since 2015).
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 | # |
|---|---|---|---|---|
| 1900s | 366 | 366 | ||
| 1910s | · | · | ||
| 1920s | · | · | ||
| 1930s | · | · | ||
| 1940s | · | · | ||
| 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 1902, the latest in 1909. Period of observation: 1902-2026.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 71.1°F — Jan 23, 1909 | -16.1°F — Jan 3, 1904 | 4.50 in — Jan 31, 2008 |
| February | 64.9°F — Feb 6, 1904 | -27.9°F — Feb 13, 1905 | 3.35 in — Feb 21, 1997 |
| March | 88.0°F — Mar 21, 1907 | -0.9°F — Mar 17, 1906 | 4.65 in — Mar 4, 1985 |
| April | 86.0°F — Apr 29, 1909 | 19.9°F — Apr 7, 1905 | 6.23 in — Apr 18, 2013 |
| May | 91.0°F — May 17, 1906 | 28.0°F — May 4, 1907 | 3.42 in — May 12, 2002 |
| June | 96.1°F — Jun 29, 1906 | 37.9°F — Jun 12, 1903 | 4.92 in — Jun 21, 2007 |
| July | 99.0°F — Jul 22, 1906 | 46.9°F — Jul 2, 1904 | 4.26 in — Jul 21, 1996 |
| August | 98.1°F — Aug 2, 1906 | 39.9°F — Aug 27, 1904 | 3.13 in — Aug 5, 1970 |
| September | 95.0°F — Sep 17, 1906 | 30.9°F — Sep 29, 1908 | 5.07 in — Sep 23, 1961 |
| October | 86.0°F — Oct 14, 1908 | 21.9°F — Oct 28, 1907 | 3.00 in — Oct 11, 1969 |
| November | 78.1°F — Nov 2, 1904 | 9.0°F — Nov 30, 1905 | 2.57 in — Nov 29, 2006 |
| December | 60.1°F — Dec 27, 1907 | -9.0°F — Dec 13, 1903 | 3.39 in — Dec 3, 1982 |
Click a month to see every daily record for that month in Colchester.