| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F 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: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 50219 - Pella, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 15 | 26 | 37 | 50 | 59 | 64 | 61 | 52 | 40 | 27 | 16 | 38 |
| Avg Max Temp (°F) | 29 | 35 | 48 | 61 | 72 | 81 | 86 | 84 | 76 | 64 | 47 | 33 | 60 |
| Avg Precip (In.) | .95 | 1.03 | 2.1 | 3.47 | 4.5 | 4.54 | 4.13 | 4.2 | 3.61 | 2.73 | 2.34 | 1.21 | 34.8 |