Britton, Michigan has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.5 °F (low) to 59.2 °F (high). Annual precipitation averages 35.3 Inches. Britton is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.3 °F | 31.9 °F | 2.37 in. |
| February | 17.1 °F | 35.0 °F | 2.0 in. |
| March | 25.5 °F | 45.1 °F | 2.43 in. |
| April | 36.2 °F | 58.5 °F | 3.28 in. |
| May | 47.4 °F | 70.3 °F | 3.93 in. |
| June | 57.1 °F | 79.8 °F | 3.58 in. |
| July | 60.2 °F | 83.8 °F | 3.28 in. |
| August | 58.4 °F | 81.8 °F | 3.41 in. |
| September | 51.0 °F | 75.5 °F | 3.05 in. |
| October | 40.1 °F | 62.7 °F | 2.88 in. |
| November | 30.5 °F | 48.5 °F | 2.8 in. |
| December | 22.3 °F | 37.0 °F | 2.29 in. |
| Annual | 38.5 °F | 59.2 °F | 35.3 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |