Dawson, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.9 °F (low) to 55 °F (high). Annual precipitation averages 25.8 Inches. Dawson 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 | 3.8 °F | 22.6 °F | 0.65 in. |
| February | 7.5 °F | 27.1 °F | 0.68 in. |
| March | 20.3 °F | 39.3 °F | 1.33 in. |
| April | 33.2 °F | 55.6 °F | 2.42 in. |
| May | 46.3 °F | 69.1 °F | 3.12 in. |
| June | 57.4 °F | 79.0 °F | 3.86 in. |
| July | 60.9 °F | 82.8 °F | 3.47 in. |
| August | 57.9 °F | 80.5 °F | 3.33 in. |
| September | 49.2 °F | 73.9 °F | 2.7 in. |
| October | 36.2 °F | 59.4 °F | 2.3 in. |
| November | 23.3 °F | 42.5 °F | 1.12 in. |
| December | 10.9 °F | 28.0 °F | 0.82 in. |
| Annual | 33.9 °F | 55 °F | 25.8 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 | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |