| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 54a - Illinois/Indiana Prairies |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 60468 - Peotone, IL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 19 | 29 | 38 | 49 | 59 | 63 | 61 | 53 | 42 | 32 | 21 | 40 |
| Avg Max Temp (°F) | 30 | 36 | 47 | 60 | 72 | 81 | 84 | 82 | 76 | 65 | 49 | 36 | 60 |
| Avg Precip (In.) | 1.59 | 1.48 | 2.67 | 3.95 | 4.62 | 5.03 | 4.1 | 3.72 | 3.33 | 3.3 | 3.59 | 2.54 | 39.92 |