| 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 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 27a - Smoky Hills | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 61 - 90 days Over 86°F |
Annual Climate Data for ZIP Code 67481 - Sylvan Grove, KS | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 21 | 30 | 40 | 51 | 61 | 67 | 65 | 55 | 43 | 30 | 20 | 42 |
| Avg Max Temp (°F) | 39 | 46 | 56 | 66 | 76 | 87 | 93 | 91 | 82 | 70 | 54 | 42 | 67 |
| Avg Precip (In.) | .72 | .85 | 2.4 | 2.47 | 4.42 | 3.34 | 3.91 | 3.3 | 2.41 | 2.03 | 1.49 | .84 | 28.17 |