Whitehall, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 3.9 °C (low) to 13.2 °C (high). Annual precipitation averages 933.7 Millimeters. Whitehall is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -7.6 °C | -0.9 °C | 66.04 mm |
| February | -7.4 °C | 0.3 °C | 51.05 mm |
| March | -3.9 °C | 5.3 °C | 55.88 mm |
| April | 1.8 °C | 12.4 °C | 91.69 mm |
| May | 7.7 °C | 18.8 °C | 93.73 mm |
| June | 13.2 °C | 23.9 °C | 87.63 mm |
| July | 15.7 °C | 26 °C | 82.3 mm |
| August | 15.1 °C | 25.5 °C | 85.09 mm |
| September | 11.1 °C | 21.9 °C | 81.53 mm |
| October | 5.3 °C | 15.1 °C | 99.06 mm |
| November | 0.2 °C | 7.8 °C | 76.71 mm |
| December | -4.2 °C | 1.9 °C | 62.99 mm |
| Annual | 3.9 °C | 13.2 °C | 933.7 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6a : -23.3°C to -20.6°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |