Climate and monthly weather forecast
West Union, IL

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Weather in January

January, like December, in West Union, Illinois, is another cold winter month, with an average temperature fluctuating between 34.5°F (1.4°C) and 22.3°F (-5.4°C). January proves to be the coldest month, recording an average maximum temperature of 34.5°F (1.4°C) and a minimum temperature of 22.3°F (-5.4°C). Weather in January »

Weather in February

February, the last month of the winter in West Union, is another cold month, with an average temperature fluctuating between 39.2°F (4°C) and 26.2°F (-3.2°C). The beginning of February reveals an average high-temperature of a still wintry 39.2°F (4°C), showing minimal deviation from the previous month. Weather in February »

Weather in March

March, the first month of the spring in West Union, is a cool month, with temperature in the range of an average high of 51.4°F (10.8°C) and an average low of 36.3°F (2.4°C). March's arrival signals an increase in average high-temperatures, moving from February's wintry 39.2°F (4°C) to a cool 51.4°F (10.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in West Union, Illinois, with an average temperature varying between 46°F (7.8°C) and 62.4°F (16.9°C). West Union sees an increase in average high-temperatures during April, moving from a cool 51.4°F (10.8°C) in March to an enjoyable 62.4°F (16.9°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in West Union, Illinois, with an average temperature varying between 73°F (22.8°C) and 56.5°F (13.6°C). May brings a rise in West Union's average high-temperature, moving from an enjoyable 62.4°F (16.9°C) in April to a pleasant 73°F (22.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in West Union, Illinois, with an average temperature fluctuating between 81.1°F (27.3°C) and 64°F (17.8°C). As West Union transitions into June, a marginal rise in the average high-temperature is observed, moving from a pleasant 73°F (22.8°C) in May to a warm 81.1°F (27.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in West Union, Illinois, with an average temperature ranging between max 82.8°F (28.2°C) and min 65.8°F (18.8°C). July, on average, is the warmest month, registering a high temperature of 82.8°F (28.2°C) and a low of 65.8°F (18.8°C). In July, the average heat index is calculated to be a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in West Union, is another warm month, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 64°F (17.8°C). The advent of August denotes an average high-temperature of a still moderately hot 81.7°F (27.6°C), subtly different from July's 82.8°F (28.2°C). Weather in August »

Weather in September

September, the first month of the autumn in West Union, is also a moderately hot month, with an average temperature fluctuating between 77.4°F (25.2°C) and 58.8°F (14.9°C). The advent of September reveals an average high-temperature of a still moderately hot 77.4°F (25.2°C), showing minimal difference from the prior month. Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in West Union, Illinois, with an average temperature ranging between max 64.4°F (18°C) and min 48°F (8.9°C). Welcoming October, West Union observes a shift in the average high-temperature, falling from September's moderately hot 77.4°F (25.2°C) to an enjoyable 64.4°F (18°C). Weather in October »

Weather in November

November, the last month of the autumn in West Union, is also a fresh month, with temperature in the range of an average low of 36.3°F (2.4°C) and an average high of 50.4°F (10.2°C). In November, the average high-temperature decreases from a refreshing 64.4°F (18°C) in October to a cool 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in West Union, is also an icy month, with an average temperature varying between 28.8°F (-1.8°C) and 39.6°F (4.2°C). Arrival of December comes with a reduction in the average high-temperature, falling from a cool 50.4°F (10.2°C) in November to a cold 39.6°F (4.2°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in West Union?

With average high temperatures of 34.5°F (1.4°C) and lows of 22.3°F (-5.4°C), January is the coldest month in West Union, Illinois.

How much does it rain in West Union?

Throughout the year, in West Union, there are 145.2 rainfall days, and 24.76" (629mm) of precipitation is accumulated.

When does it snow in West Union?

January through April, November and December are months with snowfall.

How much does it snow in West Union?

Throughout the year, there are 22.1 snowfall days, and 7.4" (188mm) of snow is accumulated.

What is the month with the least sunshine in West Union?

The month with the least sunshine is January, with an average of 4.1h of sunshine.

What are the months with the lowest UV index in West Union?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the driest month in West Union?

The month with the least rainfall is February, when the rain falls for 7.9 days and typically collects 1.26" (32mm) of precipitation.

When is Daylight Saving Time (DST) in West Union?

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 rainiest month in West Union?

April is the month with the most rainfall in West Union. Rain falls for 14.1 days and accumulates 3.54" (90mm) of precipitation.

When it does not snow in West Union?

In West Union, snow does not fall in May through October.

When are the longest days in West Union?

The month with the longest days is June, with an average of 14h and 54min of daylight.

What month has the most sunshine in West Union?

June has the most sunshine of the year, with an average of 10.4h of sunshine.

What are the months with the highest UV index in West Union?

The months with the highest UV index in West Union are June through August, with an average maximum UV index of 6.

What month is the hottest in West Union?

July, characterized by an average high temperature of 82.8°F (28.2°C) and a low temperature of 65.8°F (18.8°C), is generally the warmest month in West Union, Illinois.

What is the most humid month in West Union?

The most humid month in West Union, Illinois, is July, with an average relative humidity of 83%.

What is the least humid month in West Union?

The least humid month in West Union is October, with an average relative humidity of 71%.

What is the snowiest month in West Union?

The month with the most snowfall in West Union, Illinois, is December, when snow falls for 4.9 days and typically aggregates up to 2.13" (54mm) of snow.

What is the month with the shortest days in West Union?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

Average temperature
West Union, IL

Average temperature - West Union, IL

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.5°F).

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

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Average pressure
West Union, IL

Average pressure - West Union, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
West Union, IL

Average wind speed - West Union, IL

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average rainfall
West Union, IL

Average rainfall - West Union, IL

The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is February (1.26").

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Average rainfall days
West Union, IL

Average rainfall days - West Union, IL

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall
West Union, IL

Average snowfall - West Union, IL

The month with the highest snowfall is December (2.13").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
West Union, IL

Average snowfall days - West Union, IL

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
West Union, IL

Average daylight / Average sunshine - West Union, IL

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days
West Union, IL

Average sunshine days - West Union, IL

The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is May (9.8 days).

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Average UV index
West Union, IL

Average UV index - West Union, IL

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average visibility
West Union, IL

Average visibility - West Union, IL

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

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West Union, Illinois, USA

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