Kirtland, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 42 °F (low) to 58.5 °F (high). Annual precipitation averages 46.7 Inches. Kirtland 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. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 20.2 °F | 34.3 °F | 3.61 in. |
| February | 20.7 °F | 36.2 °F | 2.51 in. |
| March | 27.6 °F | 44.3 °F | 3.22 in. |
| April | 38.6 °F | 57.3 °F | 3.65 in. |
| May | 49.5 °F | 68.1 °F | 4.0 in. |
| June | 58.9 °F | 77.0 °F | 4.1 in. |
| July | 63.2 °F | 80.5 °F | 4.68 in. |
| August | 61.8 °F | 79.3 °F | 4.19 in. |
| September | 55.6 °F | 73.4 °F | 4.38 in. |
| October | 45.2 °F | 61.6 °F | 4.49 in. |
| November | 35.5 °F | 50.0 °F | 3.99 in. |
| December | 27.1 °F | 39.4 °F | 3.85 in. |
| Annual | 42 °F | 58.5 °F | 46.67 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |