Belgium weather by month
What a typical year looks like in Belgium, Wisconsin: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Grafton Wwtp, 23 km from Belgium; records cover 2008–2026.
The year at a glance
- Precipitation a year
- 35.5 in902 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 24
- First fall freeze
- Oct 20
- Heating degree days
- 6,774
- Cooling degree days
- 563
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 91°33° (cooling, 1%).
Month by month
Belgium in January
Highs average 30°−1° and lows 17°−8°, with 1.6 in40 mm of precipitation in a typical January.
- Record high
- 58°14° (2013)
- Record low
- −16°−27° (2014)
- Heating degree days
- 1286
- Cooling degree days
- 0
Belgium in February
Highs average 33°1° and lows 19°−7°, with 1.7 in44 mm of precipitation in a typical February.
- Record high
- 74°23° (2024)
- Record low
- −12°−24° (2019)
- Heating degree days
- 1097
- Cooling degree days
- 0
Belgium in March
Highs average 43°6° and lows 26°−3°, with 2.1 in53 mm of precipitation in a typical March.
- Record high
- 83°28° (2012)
- Record low
- −5°−21° (2014)
- Heating degree days
- 944
- Cooling degree days
- 0
Belgium in April
Highs average 54°12° and lows 36°2°, with 3.9 in100 mm of precipitation in a typical April.
- Record high
- 88°31° (2009)
- Record low
- 15°−9° (2013)
- Heating degree days
- 596
- Cooling degree days
- 1
Belgium in May
Highs average 66°19° and lows 46°8°, with 4 in101 mm of precipitation in a typical May.
- Record high
- 95°35° (2018)
- Record low
- 29°−2° (2014)
- Heating degree days
- 297
- Cooling degree days
- 16
Belgium in June
Highs average 76°24° and lows 56°13°, with 4.5 in114 mm of precipitation in a typical June.
- Record high
- 97°36° (2022)
- Record low
- 34°1° (2014)
- Heating degree days
- 67
- Cooling degree days
- 89
Belgium in July
Highs average 81°27° and lows 62°17°, with 3.6 in92 mm of precipitation in a typical July.
- Record high
- 100°38° (2012)
- Record low
- 41°5° (2013)
- Heating degree days
- 10
- Cooling degree days
- 213
Belgium in August
Highs average 80°27° and lows 61°16°, with 3.8 in96 mm of precipitation in a typical August.
- Record high
- 99°37° (2023)
- Record low
- 44°7° (2009)
- Heating degree days
- 16
- Cooling degree days
- 178
Belgium in September
Highs average 73°23° and lows 54°12°, with 3.2 in81 mm of precipitation in a typical September.
- Record high
- 95°35° (2023)
- Record low
- 35°2° (2012)
- Heating degree days
- 116
- Cooling degree days
- 62
Belgium in OctoberThis month
Highs average 61°16° and lows 43°6°, with 3 in76 mm of precipitation in a typical October.
- Record high
- 87°31° (2025)
- Record low
- 25°−4° (2020)
- Heating degree days
- 421
- Cooling degree days
- 4
Belgium in November
Highs average 46°8° and lows 31°0°, with 2.2 in55 mm of precipitation in a typical November.
- Record high
- 77°25° (2022)
- Record low
- 9°−13° (2013)
- Heating degree days
- 786
- Cooling degree days
- 0
Belgium in December
Highs average 35°2° and lows 21°−6°, with 2 in51 mm of precipitation in a typical December.
- Record high
- 66°19° (2021)
- Record low
- −10°−23° (2022)
- Heating degree days
- 1138
- Cooling degree days
- 0