Richland, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.4 °F (low) to 58.3 °F (high). Annual precipitation averages 40.3 Inches. Richland is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 17.3 °F | 31.1 °F | 2.77 in. |
| February | 18.1 °F | 34.0 °F | 2.06 in. |
| March | 26.0 °F | 44.8 °F | 2.45 in. |
| April | 37.1 °F | 58.4 °F | 3.73 in. |
| May | 48.6 °F | 69.9 °F | 4.33 in. |
| June | 57.6 °F | 79.0 °F | 4.04 in. |
| July | 61.1 °F | 82.7 °F | 3.76 in. |
| August | 59.4 °F | 80.7 °F | 4.19 in. |
| September | 51.9 °F | 74.5 °F | 3.54 in. |
| October | 41.2 °F | 61.4 °F | 3.95 in. |
| November | 31.6 °F | 47.6 °F | 2.92 in. |
| December | 23.3 °F | 35.9 °F | 2.53 in. |
| Annual | 39.4 °F | 58.3 °F | 40.27 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |