Lesterville, 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 °C (high). Annual precipitation averages 675.6 Millimeters. Lesterville 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 | -1.5 °C | 14.22 mm |
| February | -10.2 °C | 1.2 °C | 19.3 mm |
| March | -4.4 °C | 7.8 °C | 34.8 mm |
| April | 1.9 °C | 14.9 °C | 74.68 mm |
| May | 8.7 °C | 21.5 °C | 99.57 mm |
| June | 14.8 °C | 27.2 °C | 98.81 mm |
| July | 17.3 °C | 29.9 °C | 76.45 mm |
| August | 15.9 °C | 28.5 °C | 79.76 mm |
| September | 10.8 °C | 24.7 °C | 71.37 mm |
| October | 3.3 °C | 16.8 °C | 59.69 mm |
| November | -4.1 °C | 7.9 °C | 26.67 mm |
| December | -9.9 °C | 0.6 °C | 20.32 mm |
| Annual | 2.7 °C | 15 °C | 675.64 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 |