Erhard, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.3 °F (low) to 51.4 °F (high). Annual precipitation averages 26.3 Inches. Erhard 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 | 0.3 °F | 18.1 °F | 0.68 in. |
| February | 3.5 °F | 22.8 °F | 0.63 in. |
| March | 17.4 °F | 35.9 °F | 1.05 in. |
| April | 31.7 °F | 52.3 °F | 1.99 in. |
| May | 44.9 °F | 66.1 °F | 3.44 in. |
| June | 56.0 °F | 75.6 °F | 4.4 in. |
| July | 60.3 °F | 79.9 °F | 3.75 in. |
| August | 57.8 °F | 78.4 °F | 3.1 in. |
| September | 49.2 °F | 70.5 °F | 2.96 in. |
| October | 35.9 °F | 54.8 °F | 2.58 in. |
| November | 22.0 °F | 37.7 °F | 0.94 in. |
| December | 8.2 °F | 24.1 °F | 0.79 in. |
| Annual | 32.3 °F | 51.4 °F | 26.31 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 |