Hugo, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.4 °F (low) to 54.8 °F (high). Annual precipitation averages 33.2 Inches. Hugo 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 | 6.0 °F | 23.2 °F | 0.91 in. |
| February | 9.2 °F | 28.4 °F | 0.89 in. |
| March | 21.2 °F | 41.1 °F | 1.64 in. |
| April | 34.3 °F | 55.6 °F | 3.05 in. |
| May | 47.0 °F | 68.3 °F | 4.2 in. |
| June | 57.2 °F | 77.8 °F | 4.76 in. |
| July | 62.1 °F | 82.2 °F | 4.26 in. |
| August | 59.5 °F | 80.0 °F | 4.29 in. |
| September | 51.1 °F | 72.4 °F | 3.37 in. |
| October | 38.2 °F | 57.9 °F | 2.9 in. |
| November | 25.6 °F | 42.2 °F | 1.64 in. |
| December | 13.1 °F | 28.4 °F | 1.26 in. |
| Annual | 35.4 °F | 54.8 °F | 33.17 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |