Brook Park, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 31.3 °F (low) to 52.7 °F (high). Annual precipitation averages 31.8 Inches. Brook Park 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 | 0.9 °F | 21.0 °F | 0.76 in. |
| February | 4.6 °F | 26.4 °F | 0.86 in. |
| March | 17.5 °F | 38.8 °F | 1.56 in. |
| April | 30.4 °F | 53.1 °F | 2.68 in. |
| May | 42.7 °F | 66.6 °F | 3.72 in. |
| June | 53.1 °F | 75.9 °F | 4.49 in. |
| July | 57.7 °F | 80.3 °F | 4.55 in. |
| August | 55.2 °F | 78.4 °F | 4.06 in. |
| September | 46.7 °F | 70.3 °F | 3.21 in. |
| October | 34.8 °F | 55.8 °F | 3.06 in. |
| November | 22.5 °F | 39.5 °F | 1.62 in. |
| December | 9.5 °F | 26.3 °F | 1.18 in. |
| Annual | 31.3 °F | 52.7 °F | 31.75 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 |