| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| 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: | 72b - Glaciated Wabash Lowlands |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 47512 - Bicknell, IN | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 24 | 33 | 43 | 53 | 62 | 66 | 63 | 56 | 44 | 35 | 25 | 44 |
| Avg Max Temp (°F) | 36 | 42 | 53 | 64 | 75 | 83 | 87 | 85 | 79 | 68 | 53 | 42 | 64 |
| Avg Precip (In.) | 2.59 | 2.63 | 3.88 | 4.24 | 5.24 | 3.88 | 4.65 | 3.61 | 3.11 | 3.13 | 4.14 | 3.34 | 44.44 |