Columbus, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44 °F (low) to 63.1 °F (high). Annual precipitation averages 41.1 Inches. Columbus is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 21.9 °F | 36.8 °F | 2.97 in. |
| February | 23.8 °F | 40.3 °F | 2.4 in. |
| March | 32.0 °F | 50.9 °F | 3.4 in. |
| April | 42.2 °F | 64.4 °F | 3.9 in. |
| May | 53.2 °F | 74.4 °F | 4.27 in. |
| June | 62.1 °F | 82.7 °F | 4.49 in. |
| July | 65.4 °F | 85.3 °F | 4.29 in. |
| August | 63.6 °F | 84.3 °F | 3.59 in. |
| September | 56.4 °F | 78.3 °F | 3.09 in. |
| October | 44.9 °F | 66.0 °F | 2.77 in. |
| November | 34.6 °F | 52.5 °F | 2.88 in. |
| December | 27.5 °F | 41.5 °F | 3.08 in. |
| Annual | 44 °F | 63.1 °F | 41.13 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |