Ravinia, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.7 °C (low) to 15.9 °C (high). Annual precipitation averages 649 Millimeters. Ravinia 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 | -11.9 °C | -0.2 °C | 14.48 mm |
| February | -9.8 °C | 2.5 °C | 20.07 mm |
| March | -4.4 °C | 8.9 °C | 30.73 mm |
| April | 1.8 °C | 15.6 °C | 79.5 mm |
| May | 8.4 °C | 21.8 °C | 95.25 mm |
| June | 14.4 °C | 27.6 °C | 94.49 mm |
| July | 17.3 °C | 31 °C | 70.36 mm |
| August | 16.1 °C | 29.8 °C | 76.2 mm |
| September | 10.8 °C | 25.6 °C | 68.58 mm |
| October | 3.3 °C | 17.3 °C | 57.66 mm |
| November | -3.8 °C | 8.7 °C | 22.86 mm |
| December | -9.6 °C | 1.6 °C | 18.8 mm |
| Annual | 2.7 °C | 15.9 °C | 648.98 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 |