Climate and monthly weather forecast
West Union, IA

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Weather in January

January, the same as December, in West Union, Iowa, is another subzero cold winter month, with an average temperature ranging between min 10.6°F (-11.9°C) and max 22.8°F (-5.1°C). The coldest temperatures occur during January, when averages reach a peak of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C). Weather in January »

Weather in February

February, the last month of the winter in West Union, is another freezing cold month, with an average temperature ranging between min 13.6°F (-10.2°C) and max 26.1°F (-3.3°C). February's arrival registers an average high-temperature of a still subzero cold 26.1°F (-3.3°C), closely aligning with the temperature of the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a cold month in West Union, Iowa, with an average temperature ranging between min 27.3°F (-2.6°C) and max 41.9°F (5.5°C). As March arrives, West Union's weather displays a notable increase in high-temperatures, climbing from February's subzero cold 26.1°F (-3.3°C) to a wintry 41.9°F (5.5°C). Weather in March »

Weather in April

April in West Union, Iowa, is a fresh spring month, with an average temperature fluctuating between 37.9°F (3.3°C) and 54.5°F (12.5°C). West Union's April weather brings a rise in high-temperatures, moving from a cold 41.9°F (5.5°C) in March to a cool 54.5°F (12.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in West Union, Iowa, with an average temperature fluctuating between 49.8°F (9.9°C) and 66.6°F (19.2°C). With the arrival of May, the average high-temperature transitions from a cool 54.5°F (12.5°C) in April to a refreshing 66.6°F (19.2°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in West Union, Iowa, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 59.5°F (15.3°C). The start of June brings a rise in the average high-temperature, moving from an enjoyable 66.6°F (19.2°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »

Weather in July

July, like June, in West Union, Iowa, is another warm summer month, with an average temperature varying between 79°F (26.1°C) and 62.4°F (16.9°C). In West Union, the month of July registers the highest temperatures, averaging 79°F (26.1°C) at the peak and 62.4°F (16.9°C) at the lowest. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in West Union, Iowa, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 59.5°F (15.3°C). As August takes hold, the average high-temperature is a still warm 77.5°F (25.3°C), nearly mirroring that of the previous month. Weather in August »

Weather in September

September, the first month of the autumn in West Union, is still a pleasant month, with an average temperature fluctuating between 71.4°F (21.9°C) and 52.9°F (11.6°C). In West Union, entering September brings a subtle temperature decrement, reducing from August's moderately hot 77.5°F (25.3°C) to an agreeable 71.4°F (21.9°C). Weather in September »

Weather in October

October, the same as September, in West Union, Iowa, is another refreshing autumn month, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 57.2°F (14°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from an agreeable 71.4°F (21.9°C) in September to a mild 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is also an icy month in West Union, Iowa, with an average temperature varying between 42.6°F (5.9°C) and 29.7°F (-1.3°C). As November sets, the average high-temperature displays a significant decrease, moving down from a moderate 57.2°F (14°C) in October to a cold 42.6°F (5.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in West Union, Iowa, with an average temperature ranging between max 29.5°F (-1.4°C) and min 18.9°F (-7.3°C). West Union experiences a temperature shift at the start of December, with average high-temperatures adjusting from a cold 42.6°F (5.9°C) in November to a freezing cold 29.5°F (-1.4°C). Weather in December »
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Frequently asked questions

What is the coldest month in West Union?

During the coldest month in West Union, January, temperatures average a high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C).

What is the most humid month in West Union?

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

What is the driest month in West Union?

January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 1.18" (30mm) of precipitation.

How much does it rain in West Union?

In West Union, during the entire year, the rain falls for 146.5 days and collects up to 31.3" (795mm) of precipitation.

When does it snow in West Union?

Months with snowfall in West Union are January through May, October through December.

How much does it snow in West Union?

Throughout the year, there are 59.9 snowfall days, and 24.84" (631mm) of snow is accumulated.

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

The month with the least sunshine in West Union is January, with an average of 3.5h of sunshine.

When is the lowest UV index in West Union?

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

What is the snowiest month in West Union?

February is the month with the most snowfall in West Union, Iowa. Snow falls for 13 days and accumulates 6.5" (165mm) of snow.

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

On Sunday, March 10. 2024, 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 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the least humid month in West Union?

April and October, with an average relative humidity of 75%, are the least humid months.

What is the month with the highest UV index in West Union?

May through August, with an average maximum UV index of 5, are months with the highest UV index in West Union, Iowa.

What is the rainiest month in West Union?

June is the month with the most rainfall. Rain falls for 19.8 days and accumulates 5.08" (129mm) of precipitation.

When it does not snow in West Union?

In West Union, Iowa, snow does not fall in June through September.

When are the longest days in West Union?

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

What is the warmest month in West Union?

July, on average, is the warmest month, registering a high temperature of 79°F (26.1°C) and a low of 62.4°F (16.9°C).

What month has the most sunshine in West Union?

August has the most sunshine of the year in West Union, with an average of 9.8h of sunshine.

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

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

Average temperature
West Union, IA

Average temperature - West Union, IA

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure
West Union, IA

Average pressure - West Union, IA

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
West Union, IA

Average wind speed - West Union, IA

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity
West Union, IA

Average humidity - West Union, IA

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).

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Average rainfall
West Union, IA

Average rainfall - West Union, IA

The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days
West Union, IA

Average rainfall days - West Union, IA

The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall
West Union, IA

Average snowfall - West Union, IA

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
West Union, IA

Average snowfall days - West Union, IA

The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
West Union, IA

Average daylight / Average sunshine - West Union, IA

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 August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days
West Union, IA

Average sunshine days - West Union, IA

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index
West Union, IA

Average UV index - West Union, IA

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average visibility
West Union, IA

Average visibility - West Union, IA

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

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West Union, Iowa, USA

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