Alexander, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.7 °F (low) to 67.8 °F (high). Annual precipitation averages 24.6 Inches. Alexander is located in USDA Plant Hardiness Zone 6b. 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 | 18.5 °F | 43.1 °F | 0.65 in. |
| February | 21.2 °F | 47.2 °F | 0.81 in. |
| March | 30.1 °F | 57.4 °F | 1.35 in. |
| April | 39.1 °F | 66.7 °F | 2.12 in. |
| May | 50.7 °F | 76.4 °F | 3.63 in. |
| June | 61.7 °F | 87.5 °F | 3.28 in. |
| July | 66.5 °F | 92.5 °F | 4.2 in. |
| August | 64.4 °F | 90.1 °F | 3.16 in. |
| September | 56.0 °F | 82.8 °F | 1.76 in. |
| October | 42.0 °F | 70.1 °F | 1.84 in. |
| November | 29.6 °F | 56.0 °F | 0.79 in. |
| December | 20.6 °F | 44.3 °F | 0.97 in. |
| Annual | 41.7 °F | 67.8 °F | 24.56 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |