Rush City, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Annual precipitation averages 793.7 Millimeters. Rush City 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 | -16.7 °C | -5.6 °C | 18.8 mm |
| February | -14.8 °C | -2.6 °C | 21.08 mm |
| March | -7.7 °C | 4.4 °C | 39.62 mm |
| April | -0.6 °C | 12.2 °C | 71.37 mm |
| May | 6.4 °C | 19.6 °C | 98.55 mm |
| June | 12.1 °C | 24.7 °C | 112.52 mm |
| July | 14.6 °C | 27.1 °C | 107.44 mm |
| August | 13.2 °C | 26.1 °C | 100.84 mm |
| September | 8.6 °C | 21.7 °C | 81.79 mm |
| October | 1.9 °C | 13.7 °C | 73.66 mm |
| November | -5 °C | 4.7 °C | 40.64 mm |
| December | -12.3 °C | -2.7 °C | 27.43 mm |
| Annual | -0 °C | 11.9 °C | 793.74 mm |
| 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 : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |