| 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 |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 66006 - Baldwin City, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 24 | 33 | 44 | 54 | 63 | 68 | 66 | 57 | 46 | 34 | 23 | 44 |
| Avg Max Temp (°F) | 38 | 45 | 56 | 66 | 75 | 84 | 90 | 89 | 81 | 69 | 54 | 42 | 66 |
| Avg Precip (In.) | 1.22 | 1.22 | 2.82 | 3.5 | 5.16 | 5.28 | 3.91 | 3.71 | 4.31 | 3.29 | 2.74 | 1.6 | 38.78 |