Rosemount, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.1 °F (low) to 54.9 °F (high). Annual precipitation averages 34.9 Inches. Rosemount 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 6.8 °F | 23.3 °F | 1.01 in. |
| February | 10.1 °F | 28.1 °F | 1.02 in. |
| March | 22.3 °F | 40.7 °F | 1.82 in. |
| April | 35.7 °F | 55.8 °F | 3.17 in. |
| May | 48.1 °F | 68.5 °F | 4.38 in. |
| June | 58.5 °F | 78.1 °F | 5.13 in. |
| July | 62.6 °F | 82.1 °F | 4.45 in. |
| August | 60.0 °F | 80.0 °F | 4.56 in. |
| September | 51.6 °F | 72.9 °F | 3.45 in. |
| October | 38.7 °F | 58.6 °F | 2.81 in. |
| November | 25.7 °F | 42.1 °F | 1.76 in. |
| December | 13.3 °F | 28.5 °F | 1.32 in. |
| Annual | 36.1 °F | 54.9 °F | 34.88 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |