| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 39d - Central Plateau |
| Heat Zone Days: | 46 - 60 days Over 86°F |
Annual Climate Data for ZIP Code 65035 - Freeburg, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 22 | 32 | 42 | 51 | 60 | 65 | 63 | 54 | 43 | 33 | 23 | 42 |
| Avg Max Temp (°F) | 39 | 46 | 56 | 67 | 75 | 84 | 89 | 88 | 80 | 69 | 55 | 43 | 66 |
| Avg Precip (In.) | 1.88 | 2.16 | 3.49 | 3.95 | 4.85 | 4.17 | 3.8 | 3.63 | 3.76 | 3.41 | 3.92 | 2.86 | 41.88 |