| 2023 Hardiness Zone: | 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. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 40c - Wooded Osage Plains |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 65360 - Windsor, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 23 | 33 | 43 | 53 | 63 | 67 | 64 | 56 | 44 | 34 | 23 | 43 |
| Avg Max Temp (°F) | 37 | 44 | 55 | 66 | 75 | 83 | 89 | 88 | 80 | 69 | 54 | 42 | 65 |
| Avg Precip (In.) | 1.58 | 1.91 | 3.11 | 3.81 | 5.15 | 4.57 | 3.94 | 3.72 | 4.24 | 3.59 | 3.43 | 2.08 | 41.13 |