| 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. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 40e - Claypan Prairie | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 63456 - Monroe City, MO | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 23 | 32 | 42 | 52 | 62 | 66 | 64 | 55 | 44 | 33 | 22 | 43 |
| Avg Max Temp (°F) | 37 | 43 | 55 | 67 | 77 | 85 | 90 | 88 | 81 | 70 | 54 | 41 | 66 |
| Avg Precip (In.) | 1.87 | 1.94 | 3.21 | 3.78 | 4.84 | 4.07 | 4.13 | 3.71 | 3.48 | 2.85 | 3.37 | 2.52 | 39.79 |