| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| 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: | 72f - River Hills |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 63068 - New Haven, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 24 | 34 | 43 | 53 | 62 | 67 | 65 | 56 | 44 | 35 | 24 | 44 |
| Avg Max Temp (°F) | 39 | 46 | 57 | 68 | 77 | 85 | 90 | 88 | 81 | 70 | 55 | 43 | 67 |
| Avg Precip (In.) | 2 | 2.17 | 3.45 | 3.88 | 4.49 | 3.9 | 3.84 | 3.3 | 3.44 | 3.04 | 3.81 | 2.82 | 40.15 |