Coloma, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.7 °F (low) to 55 °F (high). Annual precipitation averages 34.5 Inches. Coloma is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 7.0 °F | 25.0 °F | 1.22 in. |
| February | 10.3 °F | 29.9 °F | 1.08 in. |
| March | 21.0 °F | 41.5 °F | 1.87 in. |
| April | 33.1 °F | 55.5 °F | 3.61 in. |
| May | 45.4 °F | 68.2 °F | 4.12 in. |
| June | 55.5 °F | 77.0 °F | 4.68 in. |
| July | 59.0 °F | 81.4 °F | 4.17 in. |
| August | 57.3 °F | 79.1 °F | 4.13 in. |
| September | 49.5 °F | 71.6 °F | 3.46 in. |
| October | 37.5 °F | 58.2 °F | 2.74 in. |
| November | 25.8 °F | 42.9 °F | 1.9 in. |
| December | 14.4 °F | 30.2 °F | 1.52 in. |
| Annual | 34.7 °F | 55 °F | 34.5 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |