Coffeyville, Kansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.8 °F (low) to 69 °F (high). Annual precipitation averages 44.1 Inches. Coffeyville is located in USDA Plant Hardiness Zone 7a. 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 | 23.3 °F | 45.0 °F | 1.6 in. |
| February | 26.6 °F | 49.5 °F | 1.91 in. |
| March | 36.0 °F | 59.5 °F | 3.0 in. |
| April | 45.8 °F | 68.7 °F | 4.48 in. |
| May | 56.4 °F | 76.9 °F | 6.93 in. |
| June | 65.8 °F | 85.9 °F | 5.48 in. |
| July | 70.0 °F | 91.2 °F | 3.83 in. |
| August | 68.1 °F | 90.8 °F | 3.84 in. |
| September | 59.7 °F | 82.8 °F | 4.12 in. |
| October | 47.1 °F | 71.3 °F | 3.99 in. |
| November | 35.9 °F | 58.9 °F | 2.6 in. |
| December | 26.5 °F | 47.7 °F | 2.28 in. |
| Annual | 46.8 °F | 69 °F | 44.06 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 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |