| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F 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: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47f - Rolling Loess Prairies | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 52623 - Danville, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 20 | 30 | 41 | 52 | 61 | 66 | 64 | 55 | 44 | 31 | 19 | 41 |
| Avg Max Temp (°F) | 31 | 37 | 49 | 62 | 73 | 82 | 86 | 84 | 77 | 65 | 49 | 35 | 61 |
| Avg Precip (In.) | 1.32 | 1.41 | 2.72 | 3.48 | 4.39 | 4.17 | 4.32 | 3.98 | 3.76 | 2.8 | 2.71 | 1.98 | 37.05 |