All-time weather records — Rochester, IL
Record high
°F
January 1,
Record low
°F
January 1,
Wettest day
4.50 in
September 1, 2003
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | — | — | 2.12 in — Jan 8, 2008 |
| February | — | — | 1.52 in — Feb 21, 2018 |
| March | — | — | 1.62 in — Mar 18, 2021 |
| April | — | — | 2.93 in — Apr 26, 2020 |
| May | — | — | 3.01 in — May 27, 2010 |
| June | — | — | 2.96 in — Jun 11, 2018 |
| July | — | — | 1.79 in — Jul 14, 2016 |
| August | — | — | 2.82 in — Aug 10, 2023 |
| September | — | — | 4.50 in — Sep 1, 2003 |
| October | — | — | 2.15 in — Oct 23, 2009 |
| November | — | — | 2.34 in — Nov 5, 2024 |
| December | — | — | 2.05 in — Dec 27, 2015 |
Click a month to see every daily record for that month in Rochester.