All-time weather records — Mark, IL
Climate change signal in Mark
of Mark'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 | # |
|---|---|---|---|---|
| 1960s | 51 | 61 | ||
| 1970s | 60 | 82 | ||
| 1980s | 85 | 114 | ||
| 1990s | 75 | 86 | ||
| 2000s | 95 | 23 |
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 1962, the latest in 2009. Period of observation: 1962-2009.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 66.0°F — Jan 24, 1967 | -29.9°F — Jan 5, 1999 | 14.00 in — Jan 1, 1999 |
| February | 72.0°F — Feb 26, 2000 | -20.9°F — Feb 3, 1985 | 1.95 in — Feb 27, 2009 |
| March | 86.0°F — Mar 30, 1986 | -8.0°F — Mar 5, 1978 | 3.75 in — Mar 27, 1991 |
| April | 93.0°F — Apr 26, 1986 | 5.0°F — Apr 4, 1995 | 2.27 in — Apr 14, 1981 |
| May | 96.1°F — May 30, 2006 | 24.1°F — May 10, 1966 | 3.27 in — May 17, 1974 |
| June | 109.9°F — Jun 25, 1996 | 34.0°F — Jun 11, 1972 | 2.67 in — Jun 14, 1975 |
| July | 114.1°F — Jul 29, 1993 | 43.0°F — Jul 5, 1972 | 4.35 in — Jul 11, 2008 |
| August | 104.0°F — Aug 2, 1988 | 30.9°F — Aug 30, 1984 | 5.32 in — Aug 18, 1979 |
| September | 99.0°F — Sep 2, 2000 | 28.0°F — Sep 23, 1974 | 3.40 in — Sep 5, 2008 |
| October | 93.0°F — Oct 5, 2005 | 15.1°F — Oct 30, 1988 | 6.07 in — Oct 20, 1995 |
| November | 82.0°F — Nov 2, 2000 | -5.1°F — Nov 7, 1991 | 2.81 in — Nov 9, 1966 |
| December | 70.0°F — Dec 3, 1970 | -27.9°F — Dec 27, 1983 | 3.02 in — Dec 3, 1982 |
Click a month to see every daily record for that month in Mark.