Ramsay, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 29.7 °F (low) to 50.2 °F (high). Annual precipitation averages 35.9 Inches. Ramsay is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.6 °F | 20.5 °F | 1.94 in. |
| February | 3.5 °F | 25.2 °F | 1.45 in. |
| March | 13.3 °F | 36.5 °F | 1.86 in. |
| April | 27.1 °F | 48.8 °F | 2.97 in. |
| May | 40.3 °F | 63.3 °F | 3.63 in. |
| June | 50.1 °F | 72.8 °F | 3.93 in. |
| July | 54.8 °F | 76.7 °F | 4.18 in. |
| August | 52.6 °F | 75.0 °F | 3.62 in. |
| September | 45.4 °F | 67.1 °F | 3.69 in. |
| October | 33.8 °F | 52.7 °F | 3.78 in. |
| November | 22.6 °F | 37.7 °F | 2.58 in. |
| December | 10.6 °F | 25.9 °F | 2.27 in. |
| Annual | 29.7 °F | 50.2 °F | 35.9 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |