| 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: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 47905 - Lafayette, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 20 | 30 | 39 | 50 | 60 | 63 | 61 | 53 | 42 | 33 | 22 | 41 |
| Avg Max Temp (°F) | 32 | 38 | 49 | 62 | 73 | 82 | 85 | 83 | 77 | 65 | 50 | 37 | 61 |
| Avg Precip (In.) | 1.89 | 1.69 | 2.92 | 3.49 | 4.08 | 4.26 | 3.95 | 3.84 | 2.85 | 2.62 | 2.99 | 2.58 | 37.16 |