All-time weather records — Glen Ellyn, IL
Record high
°F
January 1,
Record low
°F
January 1,
Wettest day
7.32 in
October 15, 2017
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | — | — | 1.84 in — Jan 9, 2026 |
| February | — | — | 2.69 in — Feb 27, 2009 |
| March | — | — | 1.87 in — Mar 31, 2022 |
| April | — | — | 5.61 in — Apr 18, 2013 |
| May | — | — | 2.65 in — May 26, 2011 |
| June | — | — | 3.17 in — Jun 16, 2015 |
| July | — | — | 4.71 in — Jul 24, 2010 |
| August | — | — | 3.23 in — Aug 27, 2012 |
| September | — | — | 4.03 in — Sep 12, 2022 |
| October | — | — | 7.32 in — Oct 15, 2017 |
| November | — | — | 2.24 in — Nov 30, 2006 |
| December | — | — | 1.73 in — Dec 12, 2020 |
Click a month to see every daily record for that month in Glen Ellyn.