All-time weather records — Bartlett, IL
Climate change signal in Bartlett
of Bartlett'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 | # |
|---|---|---|---|---|
| 1990s | 109 | 130 | ||
| 2000s | 220 | 226 | ||
| 2010s | 37 | 10 |
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 1994, the latest in 2011. Period of observation: 1994-2011.
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | 64.9°F — Jan 8, 2008 | -24.0°F — Jan 16, 2009 | 1.73 in — Jan 14, 1995 |
| February | 71.1°F — Feb 26, 2000 | -24.0°F — Feb 3, 1996 | 2.58 in — Feb 21, 1997 |
| March | 82.9°F — Mar 27, 2007 | -9.0°F — Mar 4, 2002 | 1.38 in — Mar 5, 2004 |
| April | 90.0°F — Apr 16, 2002 | 12.0°F — Apr 5, 1995 | 2.42 in — Apr 27, 1995 |
| May | 97.0°F — May 25, 2010 | 24.1°F — May 3, 2004 | 2.70 in — May 13, 2010 |
| June | 100.9°F — Jun 25, 2005 | 34.0°F — Jun 1, 2003 | 5.99 in — Jun 24, 1994 |
| July | 105.1°F — Jul 14, 1995 | 42.1°F — Jul 2, 2001 | 4.80 in — Jul 23, 2011 |
| August | 102.0°F — Aug 1, 2006 | 37.9°F — Aug 31, 2009 | 3.18 in — Aug 22, 2002 |
| September | 97.0°F — Sep 2, 2000 | 26.1°F — Sep 23, 1995 | 4.25 in — Sep 19, 2001 |
| October | 91.0°F — Oct 5, 2005 | 19.9°F — Oct 11, 2009 | 4.75 in — Oct 14, 2001 |
| November | 75.9°F — Nov 4, 2008 | 6.1°F — Nov 29, 1995 | 2.00 in — Nov 11, 1995 |
| December | 69.1°F — Dec 6, 2001 | -14.1°F — Dec 22, 2000 | 1.42 in — Dec 5, 1999 |
Click a month to see every daily record for that month in Bartlett.