Stockholm, South Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.4 °F (low) to 53.3 °F (high). Annual precipitation averages 25.7 Inches. Stockholm is located in USDA Plant Hardiness Zone 4b. 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 | 2.7 °F | 21.0 °F | 0.68 in. |
| February | 6.3 °F | 25.7 °F | 0.7 in. |
| March | 18.6 °F | 38.1 °F | 1.23 in. |
| April | 31.2 °F | 53.8 °F | 2.49 in. |
| May | 44.2 °F | 66.8 °F | 3.09 in. |
| June | 55.1 °F | 76.7 °F | 3.97 in. |
| July | 59.4 °F | 81.8 °F | 3.82 in. |
| August | 57.1 °F | 79.9 °F | 2.98 in. |
| September | 48.2 °F | 72.1 °F | 2.65 in. |
| October | 34.9 °F | 57.2 °F | 2.35 in. |
| November | 21.5 °F | 40.5 °F | 0.98 in. |
| December | 9.4 °F | 26.5 °F | 0.78 in. |
| Annual | 32.4 °F | 53.3 °F | 25.72 in. |
| 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |