Chokio, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.5 °C (low) to 11.6 °C (high). Annual precipitation averages 653.5 Millimeters. Chokio 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 | -16.6 °C | -6.6 °C | 16.51 mm |
| February | -14.8 °C | -4.2 °C | 16.51 mm |
| March | -7.3 °C | 2.8 °C | 28.7 mm |
| April | 0.2 °C | 11.9 °C | 61.47 mm |
| May | 7.6 °C | 19.6 °C | 78.99 mm |
| June | 13.8 °C | 24.9 °C | 100.58 mm |
| July | 15.9 °C | 27.2 °C | 102.87 mm |
| August | 14.3 °C | 26.1 °C | 78.49 mm |
| September | 9.3 °C | 22.2 °C | 65.02 mm |
| October | 2.1 °C | 13.8 °C | 60.2 mm |
| November | -5.4 °C | 4.6 °C | 25.91 mm |
| December | -12.6 °C | -3.4 °C | 18.29 mm |
| Annual | 0.5 °C | 11.6 °C | 653.54 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 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |