Chanhassen, 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 54.7 °F (high). Annual precipitation averages 32.3 Inches. Chanhassen 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 | 6.0 °F | 22.8 °F | 0.9 in. |
| February | 9.4 °F | 27.5 °F | 0.9 in. |
| March | 21.8 °F | 40.2 °F | 1.62 in. |
| April | 35.3 °F | 55.5 °F | 2.88 in. |
| May | 48.1 °F | 68.4 °F | 4.25 in. |
| June | 58.5 °F | 77.9 °F | 4.67 in. |
| July | 63.0 °F | 82.5 °F | 4.14 in. |
| August | 60.6 °F | 80.2 °F | 4.44 in. |
| September | 52.4 °F | 73.0 °F | 3.23 in. |
| October | 39.0 °F | 58.2 °F | 2.46 in. |
| November | 26.2 °F | 42.1 °F | 1.54 in. |
| December | 13.0 °F | 27.9 °F | 1.25 in. |
| Annual | 36.1 °F | 54.7 °F | 32.28 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |