| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 21 - Apr. 30 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 54b - Chicago Lake Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 46394 - Whiting, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 21 | 30 | 40 | 50 | 60 | 65 | 64 | 56 | 45 | 34 | 22 | 42 |
| Avg Max Temp (°F) | 31 | 37 | 46 | 58 | 70 | 80 | 84 | 82 | 76 | 64 | 49 | 36 | 59 |
| Avg Precip (In.) | 2.02 | 1.68 | 2.74 | 3.63 | 3.8 | 4.31 | 3.65 | 3.74 | 3.47 | 2.89 | 3.34 | 2.63 | 37.9 |