Wheeler, Wisconsin has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.1 °C (low) to 12.1 °C (high). Annual precipitation averages 870.5 Millimeters. Wheeler is located in USDA Plant Hardiness Zone 4b. 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 | -15.1 °C | -5.3 °C | 26.67 mm |
| February | -13.3 °C | -2.6 °C | 27.69 mm |
| March | -6.6 °C | 4.3 °C | 48.51 mm |
| April | 0.6 °C | 12.6 °C | 78.99 mm |
| May | 7.5 °C | 19.7 °C | 105.66 mm |
| June | 13.2 °C | 24.8 °C | 125.22 mm |
| July | 15.5 °C | 27.1 °C | 102.36 mm |
| August | 14.2 °C | 26.1 °C | 109.73 mm |
| September | 9.6 °C | 21.8 °C | 91.44 mm |
| October | 2.7 °C | 14 °C | 71.63 mm |
| November | -3.9 °C | 5.1 °C | 46.23 mm |
| December | -10.9 °C | -2.3 °C | 36.32 mm |
| Annual | 1.1 °C | 12.1 °C | 870.45 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |