Lane, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.8 °C (low) to 14.3 °C (high). Annual precipitation averages 611.9 Millimeters. Lane 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 | -13.7 °C | -3.1 °C | 14.22 mm |
| February | -11.5 °C | 0.1 °C | 17.02 mm |
| March | -5.4 °C | 6.6 °C | 28.45 mm |
| April | 1.1 °C | 14.5 °C | 70.87 mm |
| May | 8.1 °C | 21 °C | 88.9 mm |
| June | 14.2 °C | 26.7 °C | 98.3 mm |
| July | 16.7 °C | 29.8 °C | 73.15 mm |
| August | 15.4 °C | 28.8 °C | 70.36 mm |
| September | 10.3 °C | 24.4 °C | 61.72 mm |
| October | 2.6 °C | 16.1 °C | 51.82 mm |
| November | -4.8 °C | 7 °C | 20.83 mm |
| December | -10.9 °C | -0.7 °C | 16.26 mm |
| Annual | 1.8 °C | 14.3 °C | 611.9 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 |