Rosebud, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.7 °C (low) to 15.8 °C (high). Annual precipitation averages 507.5 Millimeters. Rosebud is located in USDA Plant Hardiness Zone 5a. 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 | -10.9 °C | 1.6 °C | 11.68 mm |
| February | -9.6 °C | 3.7 °C | 16 mm |
| March | -5 °C | 9 °C | 30.23 mm |
| April | 0.3 °C | 14.3 °C | 55.88 mm |
| May | 6.3 °C | 20.1 °C | 72.14 mm |
| June | 12.4 °C | 26.3 °C | 76.2 mm |
| July | 15.7 °C | 30.7 °C | 65.28 mm |
| August | 14.5 °C | 29.9 °C | 53.09 mm |
| September | 9.1 °C | 25.3 °C | 41.66 mm |
| October | 1.6 °C | 16.7 °C | 47.75 mm |
| November | -4.8 °C | 8.9 °C | 22.86 mm |
| December | -9.7 °C | 2.6 °C | 14.73 mm |
| Annual | 1.7 °C | 15.8 °C | 507.5 mm |
| 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |