Harding, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31 °F (low) to 51.7 °F (high). Annual precipitation averages 29.6 Inches. Harding 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -0.4 °F | 19.2 °F | 0.71 in. |
| February | 2.8 °F | 24.9 °F | 0.8 in. |
| March | 16.2 °F | 37.7 °F | 1.42 in. |
| April | 29.9 °F | 52.1 °F | 2.42 in. |
| May | 43.1 °F | 65.8 °F | 3.54 in. |
| June | 53.7 °F | 75.3 °F | 4.55 in. |
| July | 58.4 °F | 80.0 °F | 4.19 in. |
| August | 55.7 °F | 77.8 °F | 3.87 in. |
| September | 47.4 °F | 69.4 °F | 2.9 in. |
| October | 35.0 °F | 54.8 °F | 2.85 in. |
| November | 22.1 °F | 38.1 °F | 1.35 in. |
| December | 8.6 °F | 24.7 °F | 0.98 in. |
| Annual | 31 °F | 51.7 °F | 29.58 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 |