Columbia, Missouri has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 44.9 °F (low) to 65.2 °F (high). Annual precipitation averages 43.2 Inches. Columbia is located in USDA Plant Hardiness Zone 6b. 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 | 20.7 °F | 38.6 °F | 2.22 in. |
| February | 24.4 °F | 43.6 °F | 2.26 in. |
| March | 33.9 °F | 54.8 °F | 3.08 in. |
| April | 44.0 °F | 66.1 °F | 4.69 in. |
| May | 54.8 °F | 75.0 °F | 5.03 in. |
| June | 64.3 °F | 83.8 °F | 4.79 in. |
| July | 68.1 °F | 88.0 °F | 4.7 in. |
| August | 65.8 °F | 86.9 °F | 3.68 in. |
| September | 57.4 °F | 80.0 °F | 4.11 in. |
| October | 45.5 °F | 67.9 °F | 3.39 in. |
| November | 34.7 °F | 54.6 °F | 2.94 in. |
| December | 25.5 °F | 42.7 °F | 2.3 in. |
| Annual | 44.9 °F | 65.2 °F | 43.19 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 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 |