Columbus, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.9 °F (low) to 55.1 °F (high). Annual precipitation averages 31.8 Inches. Columbus is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 5.4 °F | 23.4 °F | 0.79 in. |
| February | 8.8 °F | 28.7 °F | 0.8 in. |
| March | 20.8 °F | 41.3 °F | 1.49 in. |
| April | 33.8 °F | 56.0 °F | 2.84 in. |
| May | 46.5 °F | 68.7 °F | 4.2 in. |
| June | 56.7 °F | 78.1 °F | 4.63 in. |
| July | 61.4 °F | 82.6 °F | 4.41 in. |
| August | 58.8 °F | 80.4 °F | 4.07 in. |
| September | 50.6 °F | 72.8 °F | 3.19 in. |
| October | 37.9 °F | 58.4 °F | 2.66 in. |
| November | 25.4 °F | 42.3 °F | 1.55 in. |
| December | 12.7 °F | 28.7 °F | 1.12 in. |
| Annual | 34.9 °F | 55.1 °F | 31.75 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |