Arden Hills, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 36.4 °F (low) to 55 °F (high). Annual precipitation averages 33.9 Inches. Arden Hills is located in USDA Plant Hardiness Zone 5a. 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 | 7.0 °F | 23.3 °F | 0.96 in. |
| February | 10.2 °F | 28.2 °F | 0.89 in. |
| March | 22.2 °F | 41.0 °F | 1.73 in. |
| April | 35.3 °F | 55.7 °F | 3.13 in. |
| May | 48.0 °F | 68.5 °F | 4.34 in. |
| June | 58.3 °F | 78.2 °F | 4.74 in. |
| July | 63.3 °F | 82.8 °F | 4.46 in. |
| August | 60.6 °F | 80.5 °F | 4.32 in. |
| September | 52.2 °F | 72.8 °F | 3.45 in. |
| October | 39.1 °F | 58.0 °F | 2.88 in. |
| November | 26.3 °F | 42.1 °F | 1.7 in. |
| December | 14.0 °F | 28.5 °F | 1.28 in. |
| Annual | 36.4 °F | 55 °F | 33.88 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |