Climate and monthly weather forecast
Belleville, WI

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Weather in January

January, like December, is a freezing cold winter month in Belleville, Wisconsin, with an average temperature fluctuating between 11.7°F (-11.3°C) and 24.4°F (-4.2°C). Belleville's January weather reaches an average high of 24.4°F (-4.2°C) and an average low of 11.7°F (-11.3°C), making it the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Belleville, Wisconsin, with temperature in the range of an average low of 15.3°F (-9.3°C) and an average high of 28°F (-2.2°C). Belleville greets February with an average high-temperature of a still subzero cold 28°F (-2.2°C), marking a slight deviation from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Belleville, Wisconsin, with temperature in the range of an average high of 42.1°F (5.6°C) and an average low of 27.5°F (-2.5°C). The arrival of March signals an increase in the average high-temperature, moving from a subzero cold 28°F (-2.2°C) in February to an icy 42.1°F (5.6°C). Weather in March »

Weather in April

April is a cool spring month in Belleville, Wisconsin, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 37.6°F (3.1°C). April brings a temperature change, with average high-temperatures moving from March's icy 42.1°F (5.6°C) to a fresh 54.3°F (12.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Belleville, Wisconsin, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.6°F (19.2°C). Belleville in May sees a temperature change, with average high-temperatures moving from a fresh 54.3°F (12.4°C) in April to an enjoyable 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Belleville, Wisconsin, with temperature in the range of an average low of 58.3°F (14.6°C) and an average high of 75.2°F (24°C). Belleville observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's refreshing 66.6°F (19.2°C) to a moderately hot 75.2°F (24°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Belleville, Wisconsin, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 61.9°F (16.6°C). July, known for its average high temperature of 79°F (26.1°C) and an average low temperature of 61.9°F (16.6°C), is the warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Belleville, Wisconsin, with an average temperature ranging between min 59.7°F (15.4°C) and max 77.5°F (25.3°C). With the start of August, Belleville measures an average high-temperature of a still moderately hot 77.5°F (25.3°C), not significantly differing from July's 79°F (26.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Belleville, is still a pleasant month, with an average temperature varying between 52.3°F (11.3°C) and 71.2°F (21.8°C). In Belleville, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's warm 77.5°F (25.3°C) to a pleasant 71.2°F (21.8°C). Weather in September »

Weather in October

October, the same as September, in Belleville, Wisconsin, is another refreshing autumn month, with an average temperature fluctuating between 41.9°F (5.5°C) and 57.7°F (14.3°C). During Belleville's transition into October, the average high-temperature lessens, moving from a pleasant 71.2°F (21.8°C) in September to a mild 57.7°F (14.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Belleville, is another chilly month, with an average temperature varying between 30.2°F (-1°C) and 42.8°F (6°C). With the onset of November, Belleville's average high-temperature witnesses a clear drop, receding from October's mild 57.7°F (14.3°C) to a frosty 42.8°F (6°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Belleville, Wisconsin, with an average temperature varying between 30.7°F (-0.7°C) and 20.8°F (-6.2°C). The onset of December is marked by a decrease in temperature, transitioning from a chilly 42.8°F (6°C) in November to a subzero cold 30.7°F (-0.7°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Belleville?

January is the month that records the lowest temperatures, with averages ranging from a high of 24.4°F (-4.2°C) to a low of 11.7°F (-11.3°C).

What is the most humid month in Belleville?

With an average relative humidity of 89%, January is the most humid month in Belleville.

What is the driest month in Belleville?

January is the month with the least rainfall in Belleville, Wisconsin. Rain falls for 3.8 days and accumulates 0.55" (14mm) of precipitation.

How many days does it rain in Belleville?

In Belleville, Wisconsin, during the entire year, the rain falls for 124.7 days and collects up to 15.16" (385mm) of precipitation.

When does it snow in Belleville?

January through May, October through December are months with snowfall in Belleville, Wisconsin.

What is the snowiest month in Belleville?

The months with the most snowfall in Belleville are January and February, with an average 2.52" (64mm) of accumulated snow.

How many days does it snow in Belleville?

Throughout the year, in Belleville, there are 48 snowfall days, and 10.43" (265mm) of snow is accumulated.

What is the month with the least sunshine in Belleville?

With an average of 3.4h of sunshine, January has the least sunshine of the year in Belleville, Wisconsin.

What are the months with the lowest UV index in Belleville?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Belleville.

When is Daylight Saving Time (DST) in Belleville?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month in Belleville?

April and October, with an average relative humidity of 77%, are the least humid months in Belleville.

What is the wettest month in Belleville?

June is the month with the most rainfall. Rain falls for 16 days and accumulates 2.32" (59mm) of precipitation.

When it does not snow in Belleville?

In Belleville, snow does not fall in June through September.

When are the longest days in Belleville?

June has the longest days of the year, with an average of 15h and 18min of daylight.

When is the highest UV index in Belleville?

The month with the highest UV index is June, with an average maximum UV index of 6.

What are the warmest months in Belleville?

In Belleville, July registers the highest temperatures, averaging 79°F (26.1°C) at the peak and 61.9°F (16.6°C) at the lowest.

What month has the most sunshine in Belleville?

With an average of 9.8h of sunshine, July has the most sunshine of the year.

What is the month with the shortest days in Belleville?

With an average of 9h and 6min of daylight, December has the shortest days of the year in Belleville, Wisconsin.

Average temperature
Belleville, WI

Average temperature - Belleville, WI

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.4°F).

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

Average pressure
Belleville, WI

Average pressure - Belleville, WI

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Belleville, WI

Average wind speed - Belleville, WI

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity
Belleville, WI

Average humidity - Belleville, WI

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall
Belleville, WI

Average rainfall - Belleville, WI

The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days
Belleville, WI

Average rainfall days - Belleville, WI

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.5 days).

Average snowfall
Belleville, WI

Average snowfall - Belleville, WI

The months with the highest snowfall are January and February (2.52").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Belleville, WI

Average snowfall days - Belleville, WI

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Belleville, WI

Average daylight / Average sunshine - Belleville, WI

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days
Belleville, WI

Average sunshine days - Belleville, WI

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.3 days).

Average UV index
Belleville, WI

Average UV index - Belleville, WI

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average visibility
Belleville, WI

Average visibility - Belleville, WI

The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).

Belleville, Wisconsin, USA

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