Corsica, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.4 °F (low) to 59.8 °F (high). Annual precipitation averages 25.3 Inches. 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 | 9.9 °F | 30.2 °F | 0.55 in. |
| February | 13.9 °F | 35.4 °F | 0.76 in. |
| March | 23.7 °F | 47.1 °F | 1.2 in. |
| April | 34.6 °F | 59.2 °F | 2.94 in. |
| May | 46.8 °F | 71.0 °F | 3.66 in. |
| June | 57.7 °F | 81.1 °F | 3.84 in. |
| July | 62.7 °F | 87.4 °F | 3.05 in. |
| August | 60.5 °F | 85.3 °F | 2.94 in. |
| September | 50.9 °F | 77.6 °F | 2.67 in. |
| October | 37.5 °F | 62.4 °F | 2.13 in. |
| November | 24.4 °F | 46.8 °F | 0.9 in. |
| December | 14.3 °F | 33.6 °F | 0.68 in. |
| Annual | 36.4 °F | 59.8 °F | 25.32 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |