Lane, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.3 °F (low) to 57.7 °F (high). Annual precipitation averages 24.1 Inches. 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 | 7.3 °F | 26.5 °F | 0.56 in. |
| February | 11.3 °F | 32.1 °F | 0.67 in. |
| March | 22.2 °F | 43.9 °F | 1.12 in. |
| April | 33.9 °F | 58.1 °F | 2.79 in. |
| May | 46.6 °F | 69.8 °F | 3.5 in. |
| June | 57.6 °F | 80.0 °F | 3.87 in. |
| July | 62.1 °F | 85.7 °F | 2.88 in. |
| August | 59.8 °F | 83.9 °F | 2.77 in. |
| September | 50.6 °F | 75.9 °F | 2.43 in. |
| October | 36.7 °F | 61.0 °F | 2.04 in. |
| November | 23.3 °F | 44.6 °F | 0.82 in. |
| December | 12.3 °F | 30.8 °F | 0.64 in. |
| Annual | 35.3 °F | 57.7 °F | 24.09 in. |
| 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 : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |