Sylvia, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.8 °F (low) to 67.5 °F (high). Annual precipitation averages 28.4 Inches. Sylvia is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.9 °F | 43.3 °F | 0.71 in. |
| February | 24.7 °F | 47.1 °F | 1.01 in. |
| March | 34.2 °F | 57.4 °F | 2.0 in. |
| April | 43.0 °F | 66.8 °F | 2.33 in. |
| May | 53.9 °F | 76.1 °F | 4.72 in. |
| June | 63.9 °F | 86.4 °F | 3.95 in. |
| July | 68.2 °F | 90.9 °F | 3.38 in. |
| August | 66.3 °F | 89.0 °F | 3.6 in. |
| September | 58.3 °F | 82.1 °F | 2.07 in. |
| October | 45.3 °F | 69.9 °F | 2.44 in. |
| November | 33.3 °F | 56.4 °F | 1.16 in. |
| December | 24.6 °F | 44.5 °F | 1.05 in. |
| Annual | 44.8 °F | 67.5 °F | 28.42 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |