Potwin, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 45.1 °F (low) to 67.5 °F (high). Annual precipitation averages 36.1 Inches. Potwin is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.4 °F | 42.6 °F | 0.82 in. |
| February | 24.4 °F | 47.3 °F | 1.32 in. |
| March | 33.7 °F | 57.8 °F | 2.4 in. |
| April | 43.6 °F | 67.3 °F | 3.3 in. |
| May | 54.8 °F | 75.8 °F | 5.43 in. |
| June | 64.5 °F | 85.6 °F | 5.41 in. |
| July | 68.8 °F | 90.6 °F | 4.31 in. |
| August | 67.0 °F | 89.3 °F | 3.94 in. |
| September | 58.6 °F | 82.2 °F | 3.34 in. |
| October | 46.0 °F | 70.3 °F | 2.92 in. |
| November | 33.8 °F | 56.5 °F | 1.71 in. |
| December | 24.3 °F | 44.7 °F | 1.24 in. |
| Annual | 45.1 °F | 67.5 °F | 36.14 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |