Climate and monthly weather forecast
West Union, IL

Weather in January

January, the same as December, is another cold winter month in West Union, Illinois, with temperature in the range of an average low of 22.3°F (-5.4°C) and an average high of 34.5°F (1.4°C). With an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 22.3°F (-5.4°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in West Union, Illinois, with an average temperature ranging between max 39.2°F (4°C) and min 26.2°F (-3.2°C). In February, the average high-temperature is relatively the same as in January - a still wintry 39.2°F (4°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in West Union, Illinois, with an average temperature varying between 51.4°F (10.8°C) and 36.3°F (2.4°C). In March, the average high-temperature increases from a wintry 39.2°F (4°C) in February to a fresh 51.4°F (10.8°C). Weather in March »

Weather in April

April in West Union, Illinois, is an enjoyable spring month, with an average temperature fluctuating between 46°F (7.8°C) and 62.4°F (16.9°C). In April, the average high-temperature increases 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

May, the last month of the spring in West Union, is a pleasant month, with an average temperature ranging between max 73°F (22.8°C) and min 56.5°F (13.6°C). In May, the average high-temperature increases from an enjoyable 62.4°F (16.9°C) in April to an agreeable 73°F (22.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in West Union, Illinois, with an average temperature varying between 81.1°F (27.3°C) and 64°F (17.8°C). In June, the average high-temperature marginally rises from an agreeable 73°F (22.8°C) in May to a moderately hot 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 min 65.8°F (18.8°C) and max 82.8°F (28.2°C). July is the warmest month, with an average high-temperature of 82.8°F (28.2°C) and an average low-temperature of 65.8°F (18.8°C). The average heat index in July is computed to be a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in West Union, Illinois, with an average temperature varying between 81.7°F (27.6°C) and 64°F (17.8°C). In August, the average high-temperature is essentially the same as in July - a still warm 81.7°F (27.6°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in West Union, Illinois, with temperature in the range of an average low of 58.8°F (14.9°C) and an average high of 77.4°F (25.2°C). In West Union, the average high-temperature in September is essentially the same as in August - a still moderately hot 77.4°F (25.2°C). 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 min 48°F (8.9°C) and max 64.4°F (18°C). In October, the average high-temperature decreases from a moderately hot 77.4°F (25.2°C) in September to a comfortable 64.4°F (18°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in West Union, Illinois, 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 West Union, the average high-temperature in November drops from a comfortable 64.4°F (18°C) in October to a fresh 50.4°F (10.2°C). Weather in November »

Weather in December

December, the first month of the winter in West Union, is still a cold month, with an average temperature varying between 28.8°F (-1.8°C) and 39.6°F (4.2°C). In West Union, the average high-temperature in December decreases from a cool 50.4°F (10.2°C) in November to a cold 39.6°F (4.2°C). Weather in December »
[Resources]

FAQ

What is the coldest month in West Union?

January is the coldest month, with an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 22.3°F (-5.4°C).

How many days does it rain in West Union?

In West Union, during the entire year, the rain falls for 145.2 days and collects up to 24.76" (629mm) of precipitation.

When does it snow in West Union?

Months with snowfall in West Union are January through April, November and December.

How many days does it snow in West Union?

In West Union, during the entire year, snow falls for 22.1 days and aggregates up to 7.4" (188mm) of snow.

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

With an average of 4.1h of sunshine, January has the least sunshine of the year in West Union, Illinois.

What is the month 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?

February is the month with the least rainfall in West Union. Rain falls for 7.9 days and accumulates 1.26" (32mm) of precipitation.

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

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in West Union, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in West Union?

The month with the most rainfall in West Union, Illinois, is April, when the rain falls for 14.1 days and typically aggregates up to 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 in West Union is June, with an average of 14h and 53min of daylight.

What month has the most sunshine in West Union?

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

When is the highest UV index in West Union?

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

What is the warmest month in West Union?

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

What is the most humid month in West Union?

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

What is the least humid month in West Union?

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

When does it snow the most in West Union?

The month with the most snowfall in West Union 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?

December has the shortest days of the year in West Union, with an average of 9h and 28min 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).

[Resources]

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).

[Resources]

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).

[Resources]

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").

[Resources]

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).

[Resources]

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").

[Resources]

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).

[Resources]

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 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location