Hills, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.1 °F (low) to 56.1 °F (high). Annual precipitation averages 29.3 Inches. Hills is located in USDA Plant Hardiness Zone 5a. 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 | 6.6 °F | 24.9 °F | 0.68 in. |
| February | 10.8 °F | 29.6 °F | 0.92 in. |
| March | 22.4 °F | 42.2 °F | 1.49 in. |
| April | 33.8 °F | 56.9 °F | 2.92 in. |
| May | 46.7 °F | 69.0 °F | 3.69 in. |
| June | 58.2 °F | 79.4 °F | 4.75 in. |
| July | 61.4 °F | 83.0 °F | 3.4 in. |
| August | 58.7 °F | 80.7 °F | 3.41 in. |
| September | 49.7 °F | 74.2 °F | 3.25 in. |
| October | 36.6 °F | 60.1 °F | 2.32 in. |
| November | 23.5 °F | 43.6 °F | 1.44 in. |
| December | 12.3 °F | 29.6 °F | 1.02 in. |
| Annual | 35.1 °F | 56.1 °F | 29.29 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |