Sartell, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.7 °F (low) to 53.2 °F (high). Annual precipitation averages 29 Inches. Sartell is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.5 °F | 20.8 °F | 0.63 in. |
| February | 5.7 °F | 25.8 °F | 0.7 in. |
| March | 18.5 °F | 38.5 °F | 1.46 in. |
| April | 31.9 °F | 54.0 °F | 2.58 in. |
| May | 44.8 °F | 67.4 °F | 3.78 in. |
| June | 55.3 °F | 76.9 °F | 4.3 in. |
| July | 59.6 °F | 81.4 °F | 3.81 in. |
| August | 56.6 °F | 79.2 °F | 3.99 in. |
| September | 48.4 °F | 71.3 °F | 2.85 in. |
| October | 35.7 °F | 56.7 °F | 2.69 in. |
| November | 22.9 °F | 39.9 °F | 1.3 in. |
| December | 10.3 °F | 26.3 °F | 0.9 in. |
| Annual | 32.7 °F | 53.2 °F | 28.99 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |