Champlin, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.7 °F (low) to 54.7 °F (high). Annual precipitation averages 32.6 Inches. Champlin 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 | 5.3 °F | 23.1 °F | 0.85 in. |
| February | 8.4 °F | 28.1 °F | 0.86 in. |
| March | 20.5 °F | 41.0 °F | 1.61 in. |
| April | 33.5 °F | 55.4 °F | 2.98 in. |
| May | 46.3 °F | 68.3 °F | 4.38 in. |
| June | 56.7 °F | 77.6 °F | 4.61 in. |
| July | 61.5 °F | 82.7 °F | 4.21 in. |
| August | 59.0 °F | 79.9 °F | 4.23 in. |
| September | 50.6 °F | 72.3 °F | 3.4 in. |
| October | 37.6 °F | 57.7 °F | 2.63 in. |
| November | 24.9 °F | 42.2 °F | 1.67 in. |
| December | 12.4 °F | 28.4 °F | 1.21 in. |
| Annual | 34.7 °F | 54.7 °F | 32.64 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 | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |