| 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: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 40a - Loess Flats and Till Plains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 52565 - Keosauqua, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 20 | 31 | 41 | 52 | 61 | 66 | 64 | 55 | 44 | 32 | 20 | 42 |
| Avg Max Temp (°F) | 33 | 39 | 52 | 65 | 75 | 84 | 88 | 86 | 78 | 67 | 50 | 37 | 63 |
| Avg Precip (In.) | 1.37 | 1.37 | 2.65 | 3.59 | 4.77 | 4.35 | 4.93 | 3.74 | 3.92 | 2.86 | 2.86 | 1.98 | 38.37 |