| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°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: | 40b - Osage Cuestas | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 66086 - Tonganoxie, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 23 | 33 | 43 | 54 | 63 | 68 | 66 | 57 | 45 | 33 | 22 | 44 |
| Avg Max Temp (°F) | 37 | 44 | 55 | 66 | 76 | 84 | 90 | 88 | 80 | 69 | 53 | 41 | 65 |
| Avg Precip (In.) | 1.18 | 1.17 | 2.66 | 3.41 | 5.1 | 4.81 | 4.2 | 3.75 | 4.9 | 3.22 | 2.49 | 1.6 | 38.49 |