East Jordan, Michigan has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.7 °C (low) to 12.6 °C (high). Annual precipitation averages 850.6 Millimeters. East Jordan is located in USDA Plant Hardiness Zone 5b. 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 | -9.7 °C | -2.3 °C | 54.61 mm |
| February | -10.6 °C | -1.1 °C | 35.56 mm |
| March | -7.1 °C | 4.3 °C | 41.66 mm |
| April | -0.6 °C | 11.6 °C | 67.56 mm |
| May | 5.6 °C | 19.1 °C | 75.18 mm |
| June | 10.9 °C | 24.2 °C | 78.74 mm |
| July | 13.3 °C | 26.4 °C | 72.9 mm |
| August | 12.9 °C | 25.8 °C | 83.06 mm |
| September | 8.9 °C | 21.8 °C | 93.98 mm |
| October | 3.6 °C | 14.2 °C | 108.2 mm |
| November | -1 °C | 6.9 °C | 74.42 mm |
| December | -5.7 °C | 0.7 °C | 64.77 mm |
| Annual | 1.7 °C | 12.6 °C | 850.64 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |