Colome, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36.2 °F (low) to 60.3 °F (high). Annual precipitation averages 24.5 Inches. Colome 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 | 12.6 °F | 33.7 °F | 0.48 in. |
| February | 15.6 °F | 37.8 °F | 0.64 in. |
| March | 24.2 °F | 48.1 °F | 1.17 in. |
| April | 34.2 °F | 58.2 °F | 2.79 in. |
| May | 45.0 °F | 69.2 °F | 3.9 in. |
| June | 55.8 °F | 79.8 °F | 4.15 in. |
| July | 61.4 °F | 87.6 °F | 2.88 in. |
| August | 59.4 °F | 85.9 °F | 2.74 in. |
| September | 50.1 °F | 77.6 °F | 2.35 in. |
| October | 36.6 °F | 62.6 °F | 2.05 in. |
| November | 24.5 °F | 47.4 °F | 0.74 in. |
| December | 15.4 °F | 35.9 °F | 0.6 in. |
| Annual | 36.2 °F | 60.3 °F | 24.49 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 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |