| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F | |
| 1990 Hardiness Zone: | Zone 4b: -25F to -20F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 47b - Des Moines Lobe | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 51334 - Estherville, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 4 | 10 | 22 | 33 | 46 | 56 | 60 | 58 | 48 | 36 | 22 | 9 | 34 |
| Avg Max Temp (°F) | 23 | 29 | 41 | 56 | 70 | 79 | 83 | 80 | 73 | 60 | 41 | 27 | 55 |
| Avg Precip (In.) | .7 | .53 | 1.79 | 3.08 | 3.5 | 4.59 | 3.59 | 3.86 | 2.73 | 2.13 | 1.5 | .64 | 28.66 |