Hager City, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.1 °C (low) to 12.9 °C (high). Annual precipitation averages 856.5 Millimeters. Hager City is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.4 °C | -4.6 °C | 24.38 mm |
| February | -12.6 °C | -1.9 °C | 24.38 mm |
| March | -5.5 °C | 4.9 °C | 44.96 mm |
| April | 1.7 °C | 13.2 °C | 75.69 mm |
| May | 8.6 °C | 20.3 °C | 108.71 mm |
| June | 14.4 °C | 25.6 °C | 130.56 mm |
| July | 16.7 °C | 28.2 °C | 101.09 mm |
| August | 15.3 °C | 26.8 °C | 117.6 mm |
| September | 10.8 °C | 22.8 °C | 90.42 mm |
| October | 3.6 °C | 14.9 °C | 66.29 mm |
| November | -3.3 °C | 5.9 °C | 42.42 mm |
| December | -10.1 °C | -1.5 °C | 29.97 mm |
| Annual | 2.1 °C | 12.9 °C | 856.47 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |