| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F | |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 54a - Illinois/Indiana Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 31 - 45 days Over 86°F |
Annual Climate Data for ZIP Code 61760 - Minonk, IL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 13 | 18 | 29 | 39 | 49 | 59 | 63 | 60 | 52 | 41 | 30 | 19 | 39 |
| Avg Max Temp (°F) | 30 | 36 | 48 | 62 | 73 | 83 | 86 | 84 | 78 | 66 | 49 | 36 | 61 |
| Avg Precip (In.) | 1.71 | 1.78 | 3.15 | 3.56 | 4.17 | 3.78 | 3.83 | 3.45 | 3.35 | 2.8 | 3.24 | 2.4 | 37.23 |