Comstock, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32 °F (low) to 51.9 °F (high). Annual precipitation averages 24.4 Inches. Comstock is located in USDA Plant Hardiness Zone 4a. 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 | 0.0 °F | 17.3 °F | 0.69 in. |
| February | 3.9 °F | 22.5 °F | 0.64 in. |
| March | 17.5 °F | 35.3 °F | 1.04 in. |
| April | 31.9 °F | 53.1 °F | 1.52 in. |
| May | 45.0 °F | 67.4 °F | 3.1 in. |
| June | 56.2 °F | 76.7 °F | 4.34 in. |
| July | 60.0 °F | 80.9 °F | 3.47 in. |
| August | 57.1 °F | 79.9 °F | 2.76 in. |
| September | 48.1 °F | 71.6 °F | 2.86 in. |
| October | 35.4 °F | 55.9 °F | 2.41 in. |
| November | 21.3 °F | 38.2 °F | 0.84 in. |
| December | 8.0 °F | 23.8 °F | 0.77 in. |
| Annual | 32 °F | 51.9 °F | 24.44 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 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |