Big Rapids, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 35.3 °F (low) to 56.1 °F (high). Annual precipitation averages 36.7 Inches. Big Rapids is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.7 °F | 28.8 °F | 2.41 in. |
| February | 13.3 °F | 31.6 °F | 1.86 in. |
| March | 20.8 °F | 42.0 °F | 2.4 in. |
| April | 32.4 °F | 55.4 °F | 3.78 in. |
| May | 43.8 °F | 67.7 °F | 3.86 in. |
| June | 53.4 °F | 77.2 °F | 3.39 in. |
| July | 57.1 °F | 81.1 °F | 3.35 in. |
| August | 55.5 °F | 79.3 °F | 3.85 in. |
| September | 48.0 °F | 72.1 °F | 3.01 in. |
| October | 37.4 °F | 58.9 °F | 3.61 in. |
| November | 28.3 °F | 45.1 °F | 2.97 in. |
| December | 20.3 °F | 33.9 °F | 2.19 in. |
| Annual | 35.3 °F | 56.1 °F | 36.68 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |