Wetmore, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42.3 °F (low) to 64.4 °F (high). Annual precipitation averages 35.7 Inches. Wetmore is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.7 °F | 36.6 °F | 0.74 in. |
| February | 20.4 °F | 42.0 °F | 1.16 in. |
| March | 30.6 °F | 54.1 °F | 2.22 in. |
| April | 41.0 °F | 64.9 °F | 3.61 in. |
| May | 53.1 °F | 74.7 °F | 5.13 in. |
| June | 63.3 °F | 84.2 °F | 4.78 in. |
| July | 67.1 °F | 88.4 °F | 4.68 in. |
| August | 64.9 °F | 87.0 °F | 4.03 in. |
| September | 55.3 °F | 79.7 °F | 3.54 in. |
| October | 43.0 °F | 67.8 °F | 2.87 in. |
| November | 31.0 °F | 52.8 °F | 1.73 in. |
| December | 21.6 °F | 40.7 °F | 1.23 in. |
| Annual | 42.3 °F | 64.4 °F | 35.72 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |