Hoffman, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.9 °F (low) to 52.3 °F (high). Annual precipitation averages 26.3 Inches. Hoffman 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 | 1.6 °F | 19.3 °F | 0.69 in. |
| February | 4.9 °F | 23.8 °F | 0.72 in. |
| March | 18.3 °F | 36.6 °F | 1.22 in. |
| April | 32.3 °F | 53.1 °F | 2.17 in. |
| May | 45.7 °F | 66.9 °F | 3.18 in. |
| June | 56.4 °F | 76.4 °F | 4.24 in. |
| July | 60.7 °F | 80.6 °F | 3.84 in. |
| August | 57.9 °F | 78.9 °F | 3.19 in. |
| September | 49.1 °F | 71.3 °F | 2.7 in. |
| October | 35.9 °F | 56.0 °F | 2.49 in. |
| November | 22.3 °F | 39.1 °F | 1.02 in. |
| December | 9.2 °F | 25.3 °F | 0.87 in. |
| Annual | 32.9 °F | 52.3 °F | 26.33 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 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |