Brownsville, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.9 °F (low) to 56.7 °F (high). Annual precipitation averages 37.8 Inches. Brownsville 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.7 °F | 26.1 °F | 1.21 in. |
| February | 13.2 °F | 30.8 °F | 1.16 in. |
| March | 24.7 °F | 43.0 °F | 2.06 in. |
| April | 37.0 °F | 57.5 °F | 3.96 in. |
| May | 48.8 °F | 69.9 °F | 5.03 in. |
| June | 59.1 °F | 79.4 °F | 5.88 in. |
| July | 63.1 °F | 83.0 °F | 4.12 in. |
| August | 61.0 °F | 81.1 °F | 4.5 in. |
| September | 52.7 °F | 73.7 °F | 3.88 in. |
| October | 40.5 °F | 60.2 °F | 2.82 in. |
| November | 28.6 °F | 44.4 °F | 1.8 in. |
| December | 16.9 °F | 31.3 °F | 1.4 in. |
| Annual | 37.9 °F | 56.7 °F | 37.82 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |