South Rockwood, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 41.6 °F (low) to 58.8 °F (high). Annual precipitation averages 35.4 Inches. South Rockwood is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.0 °F | 32.5 °F | 2.43 in. |
| February | 20.2 °F | 35.2 °F | 2.11 in. |
| March | 27.7 °F | 44.8 °F | 2.58 in. |
| April | 38.5 °F | 57.2 °F | 3.24 in. |
| May | 49.9 °F | 68.9 °F | 3.78 in. |
| June | 60.1 °F | 79.1 °F | 3.4 in. |
| July | 63.9 °F | 83.1 °F | 3.34 in. |
| August | 62.4 °F | 81.4 °F | 3.39 in. |
| September | 55.4 °F | 74.9 °F | 3.2 in. |
| October | 43.6 °F | 62.0 °F | 2.76 in. |
| November | 33.6 °F | 48.5 °F | 2.73 in. |
| December | 25.4 °F | 37.6 °F | 2.4 in. |
| Annual | 41.6 °F | 58.8 °F | 35.36 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |