Davis, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.4 °C (low) to 14.4 °C (high). Annual precipitation averages 697.2 Millimeters. Davis is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -13.3 °C | -2.7 °C | 14.48 mm |
| February | -11 °C | 0.1 °C | 19.05 mm |
| March | -4.7 °C | 6.9 °C | 35.81 mm |
| April | 1.7 °C | 14.8 °C | 73.66 mm |
| May | 8.7 °C | 21.4 °C | 97.79 mm |
| June | 14.9 °C | 27.1 °C | 109.22 mm |
| July | 17.2 °C | 29.4 °C | 81.28 mm |
| August | 15.8 °C | 28 °C | 82.04 mm |
| September | 10.6 °C | 24.2 °C | 73.41 mm |
| October | 3.1 °C | 16.5 °C | 60.2 mm |
| November | -4.4 °C | 7.3 °C | 29.46 mm |
| December | -10.4 °C | -0.3 °C | 20.83 mm |
| Annual | 2.4 °C | 14.4 °C | 697.23 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |