Courtland, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.5 °F (low) to 64.8 °F (high). Annual precipitation averages 29.1 Inches. Courtland is located in USDA Plant Hardiness Zone 6a. 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 | 16.9 °F | 38.0 °F | 0.64 in. |
| February | 20.1 °F | 42.6 °F | 0.87 in. |
| March | 29.5 °F | 54.3 °F | 1.55 in. |
| April | 39.5 °F | 64.6 °F | 2.57 in. |
| May | 51.2 °F | 74.4 °F | 4.42 in. |
| June | 62.2 °F | 85.1 °F | 4.42 in. |
| July | 66.8 °F | 89.7 °F | 4.45 in. |
| August | 64.4 °F | 87.2 °F | 3.37 in. |
| September | 55.2 °F | 80.2 °F | 2.54 in. |
| October | 42.1 °F | 67.6 °F | 2.03 in. |
| November | 29.4 °F | 52.7 °F | 1.22 in. |
| December | 20.3 °F | 40.7 °F | 1.01 in. |
| Annual | 41.5 °F | 64.8 °F | 29.09 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 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |