All-time weather records — Onslow, IA
Record high
°F
January 1,
Record low
°F
January 1,
Wettest day
5.58 in
September 6, 2020
Records by month
| Month | Hottest day | Coldest day | Wettest day |
|---|---|---|---|
| January | — | — | 1.02 in — Jan 22, 2018 |
| February | — | — | 1.48 in — Feb 27, 2023 |
| March | — | — | 1.75 in — Mar 5, 2025 |
| April | — | — | 4.03 in — Apr 18, 2013 |
| May | — | — | 2.56 in — May 27, 2013 |
| June | — | — | 2.80 in — Jun 17, 2014 |
| July | — | — | 3.94 in — Jul 14, 2018 |
| August | — | — | 3.91 in — Aug 6, 2018 |
| September | — | — | 5.58 in — Sep 6, 2020 |
| October | — | — | 3.03 in — Oct 31, 2024 |
| November | — | — | 2.08 in — Nov 5, 2022 |
| December | — | — | 1.60 in — Dec 14, 2015 |
Click a month to see every daily record for that month in Onslow.