Springfield, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.9 °F (low) to 60.1 °F (high). Annual precipitation averages 26 Inches. Springfield 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.9 °F | 30.3 °F | 0.54 in. |
| February | 13.5 °F | 35.2 °F | 0.76 in. |
| March | 24.1 °F | 47.4 °F | 1.35 in. |
| April | 35.3 °F | 60.2 °F | 2.96 in. |
| May | 47.5 °F | 71.6 °F | 3.89 in. |
| June | 58.6 °F | 82.1 °F | 3.66 in. |
| July | 63.4 °F | 87.3 °F | 3.02 in. |
| August | 61.0 °F | 85.1 °F | 3.17 in. |
| September | 51.5 °F | 77.6 °F | 2.64 in. |
| October | 38.0 °F | 63.3 °F | 2.28 in. |
| November | 25.1 °F | 47.2 °F | 0.99 in. |
| December | 14.5 °F | 34.1 °F | 0.72 in. |
| Annual | 36.9 °F | 60.1 °F | 25.98 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| 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 5a : -20°F to -15°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |