| 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: | 47e - Steeply Rolling Loess Prairies |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 51445 - Ida Grove, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 6 | 12 | 23 | 35 | 48 | 58 | 63 | 60 | 50 | 37 | 24 | 12 | 36 |
| Avg Max Temp (°F) | 27 | 33 | 45 | 59 | 71 | 81 | 85 | 82 | 75 | 62 | 44 | 30 | 58 |
| Avg Precip (In.) | .77 | .68 | 2.06 | 3.06 | 4.13 | 4.68 | 3.89 | 4.06 | 2.89 | 2.31 | 1.38 | .82 | 30.73 |