Lamont, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 39.2 °F (low) to 56.3 °F (high). Annual precipitation averages 39.3 Inches. Lamont 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 | 17.7 °F | 30.2 °F | 2.95 in. |
| February | 18.2 °F | 32.6 °F | 2.22 in. |
| March | 25.3 °F | 42.7 °F | 2.4 in. |
| April | 36.0 °F | 55.0 °F | 3.88 in. |
| May | 47.1 °F | 66.7 °F | 4.16 in. |
| June | 56.7 °F | 76.3 °F | 3.79 in. |
| July | 60.5 °F | 79.9 °F | 3.34 in. |
| August | 59.4 °F | 78.8 °F | 3.4 in. |
| September | 51.9 °F | 72.5 °F | 3.33 in. |
| October | 41.3 °F | 59.2 °F | 3.85 in. |
| November | 32.0 °F | 46.2 °F | 3.23 in. |
| December | 24.1 °F | 35.3 °F | 2.71 in. |
| Annual | 39.2 °F | 56.3 °F | 39.26 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 | Dfb - Humid Continental Mild Summer, Wet All Year |