Spearville, Kansas has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 42.2 °F (low) to 68.4 °F (high). Annual precipitation averages 23.6 Inches. Spearville 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.5 °F | 44.6 °F | 0.62 in. |
| February | 22.2 °F | 48.6 °F | 0.62 in. |
| March | 30.5 °F | 58.2 °F | 1.38 in. |
| April | 39.6 °F | 66.9 °F | 2.04 in. |
| May | 51.2 °F | 76.7 °F | 3.36 in. |
| June | 61.9 °F | 87.4 °F | 3.43 in. |
| July | 66.4 °F | 92.4 °F | 3.61 in. |
| August | 64.5 °F | 90.1 °F | 3.26 in. |
| September | 56.0 °F | 82.9 °F | 1.68 in. |
| October | 42.5 °F | 70.4 °F | 2.01 in. |
| November | 30.0 °F | 56.7 °F | 0.78 in. |
| December | 21.5 °F | 45.8 °F | 0.85 in. |
| Annual | 42.2 °F | 68.4 °F | 23.64 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |