| 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. 1 - Apr. 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 27d - Wellington-McPherson Lowland | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 67037 - Derby, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 24 | 33 | 43 | 54 | 64 | 69 | 68 | 59 | 46 | 33 | 23 | 45 |
| Avg Max Temp (°F) | 40 | 47 | 57 | 67 | 76 | 87 | 93 | 91 | 82 | 71 | 55 | 44 | 68 |
| Avg Precip (In.) | .93 | 1.25 | 2.84 | 2.87 | 4.5 | 4.59 | 3.6 | 3.24 | 3.07 | 2.55 | 2.28 | 1.35 | 33.06 |