| 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 |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 60151 - Maple Park, IL | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 16 | 26 | 37 | 47 | 58 | 62 | 60 | 51 | 40 | 28 | 17 | 38 |
| Avg Max Temp (°F) | 27 | 33 | 45 | 58 | 70 | 80 | 83 | 81 | 74 | 63 | 46 | 33 | 58 |
| Avg Precip (In.) | 1.61 | 1.4 | 2.42 | 3.66 | 4 | 4.47 | 4.09 | 4.35 | 3.49 | 2.66 | 2.97 | 2.17 | 37.29 |