Corsica, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.5 °C (low) to 15.4 °C (high). Annual precipitation averages 643.1 Millimeters. Corsica is located in USDA Plant Hardiness Zone 5a. 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 | -12.3 °C | -1 °C | 13.97 mm |
| February | -10.1 °C | 1.9 °C | 19.3 mm |
| March | -4.6 °C | 8.4 °C | 30.48 mm |
| April | 1.4 °C | 15.1 °C | 74.68 mm |
| May | 8.2 °C | 21.7 °C | 92.96 mm |
| June | 14.3 °C | 27.3 °C | 97.54 mm |
| July | 17.1 °C | 30.8 °C | 77.47 mm |
| August | 15.8 °C | 29.6 °C | 74.68 mm |
| September | 10.5 °C | 25.3 °C | 67.82 mm |
| October | 3.1 °C | 16.9 °C | 54.1 mm |
| November | -4.2 °C | 8.2 °C | 22.86 mm |
| December | -9.8 °C | 0.9 °C | 17.27 mm |
| Annual | 2.5 °C | 15.4 °C | 643.13 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |