| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | Apr. 11 - Apr. 20 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 40b - Osage Cuestas |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 67337 - Coffeyville, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 21 | 25 | 35 | 45 | 55 | 64 | 69 | 67 | 59 | 46 | 35 | 25 | 45 |
| Avg Max Temp (°F) | 43 | 49 | 60 | 69 | 77 | 86 | 92 | 91 | 83 | 72 | 58 | 46 | 69 |
| Avg Precip (In.) | 1.51 | 1.79 | 3.61 | 3.89 | 5.57 | 5.04 | 3.45 | 3.47 | 4.76 | 3.94 | 3.53 | 2.12 | 42.68 |