Ashland Heights, South Dakota has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 35.7 °F (low) to 59.3 °F (high). Annual precipitation averages 18.7 Inches. Ashland Heights is located in USDA Plant Hardiness Zone 5b. 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 | 14.3 °F | 36.3 °F | 0.35 in. |
| February | 15.9 °F | 38.0 °F | 0.5 in. |
| March | 24.0 °F | 47.7 °F | 1.01 in. |
| April | 32.6 °F | 55.8 °F | 2.09 in. |
| May | 43.3 °F | 65.2 °F | 3.94 in. |
| June | 53.4 °F | 76.8 °F | 3.21 in. |
| July | 60.0 °F | 85.3 °F | 2.08 in. |
| August | 58.1 °F | 84.5 °F | 1.68 in. |
| September | 48.6 °F | 75.4 °F | 1.38 in. |
| October | 36.1 °F | 60.6 °F | 1.48 in. |
| November | 25.1 °F | 47.8 °F | 0.53 in. |
| December | 16.4 °F | 37.7 °F | 0.4 in. |
| Annual | 35.7 °F | 59.3 °F | 18.65 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 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |