| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°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: | 55b - Loamy High Lime Till Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 47907 - West Lafayette, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 20 | 30 | 40 | 50 | 60 | 64 | 62 | 54 | 43 | 33 | 22 | 41 |
| Avg Max Temp (°F) | 32 | 38 | 49 | 62 | 73 | 82 | 85 | 83 | 77 | 65 | 50 | 37 | 61 |
| Avg Precip (In.) | 1.86 | 1.63 | 2.89 | 3.5 | 4.03 | 4.25 | 3.9 | 3.87 | 2.81 | 2.61 | 2.89 | 2.56 | 36.79 |