Belgium, Wisconsin has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37 °F (low) to 54.5 °F (high). Annual precipitation averages 33.4 Inches. Belgium is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 12.3 °F | 27.3 °F | 1.57 in. |
| February | 14.6 °F | 30.6 °F | 1.5 in. |
| March | 24.1 °F | 40.9 °F | 2.03 in. |
| April | 34.2 °F | 52.0 °F | 3.82 in. |
| May | 44.7 °F | 63.3 °F | 3.91 in. |
| June | 54.8 °F | 73.7 °F | 3.41 in. |
| July | 60.6 °F | 79.7 °F | 3.73 in. |
| August | 59.3 °F | 78.2 °F | 3.8 in. |
| September | 51.5 °F | 71.4 °F | 3.01 in. |
| October | 40.0 °F | 58.4 °F | 2.88 in. |
| November | 28.9 °F | 44.9 °F | 1.93 in. |
| December | 18.8 °F | 33.3 °F | 1.85 in. |
| Annual | 37 °F | 54.5 °F | 33.44 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |