| 2023 Hardiness Zone: | 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. 1 - Oct. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 47f - Rolling Loess Prairies |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 50210 - New Virginia, IA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 16 | 27 | 38 | 49 | 59 | 64 | 61 | 52 | 40 | 28 | 16 | 38 |
| Avg Max Temp (°F) | 29 | 36 | 48 | 61 | 72 | 81 | 86 | 84 | 76 | 64 | 47 | 34 | 60 |
| Avg Precip (In.) | .94 | 1.11 | 2.22 | 3.53 | 4.5 | 4.58 | 4.59 | 3.99 | 3.87 | 2.75 | 2.27 | 1.24 | 35.6 |