Aurora, South Dakota has a Humid Continental Hot Summers With Dry Winters climate (Köppen classification: Dwa). Average annual temperatures range from 33.2 °F (low) to 53.9 °F (high). Annual precipitation averages 26.2 Inches. Aurora 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 Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 4.3 °F | 22.7 °F | 0.54 in. |
| February | 8.0 °F | 27.3 °F | 0.62 in. |
| March | 20.0 °F | 39.5 °F | 1.25 in. |
| April | 32.2 °F | 54.1 °F | 2.39 in. |
| May | 45.3 °F | 66.7 °F | 3.51 in. |
| June | 56.4 °F | 76.8 °F | 4.28 in. |
| July | 60.2 °F | 81.4 °F | 3.57 in. |
| August | 57.3 °F | 79.0 °F | 3.25 in. |
| September | 48.4 °F | 71.9 °F | 3.02 in. |
| October | 34.8 °F | 57.7 °F | 2.09 in. |
| November | 21.7 °F | 41.5 °F | 0.96 in. |
| December | 10.3 °F | 27.8 °F | 0.76 in. |
| Annual | 33.2 °F | 53.9 °F | 26.24 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| 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 | Severe Drought |
| Köppen Climate Classification | Dwa - Humid Continental Hot Summers With Dry Winters |