Climate and monthly weather forecast
Union Center, SD

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Weather in January

January, the same as December, is a wintry winter month in Union Center, South Dakota, with an average temperature ranging between min 18.7°F (-7.4°C) and max 32.4°F (0.2°C). The arrival of January denotes a barely perceptible change in the average high-temperatures to a still wintry 32.4°F (0.2°C) from December's 32.2°F (0.1°C). Weather in January »

Weather in February

February, the last month of the winter in Union Center, is also an icy month, with an average temperature fluctuating between 18°F (-7.8°C) and 32.7°F (0.4°C). The transition into February is marked with an average high-temperature of a still icy 32.7°F (0.4°C), showing an insignificant shift from January's 32.4°F (0.2°C). Weather in February »

Weather in March

March, the first month of the spring in Union Center, is a chilly month, with an average temperature varying between 28.6°F (-1.9°C) and 45°F (7.2°C). Union Center's weather shows a temperature rise with the arrival of March, moving from an icy 32.7°F (0.4°C) in February to a chilly 45°F (7.2°C). Weather in March »

Weather in April

April in Union Center, South Dakota, is a fresh spring month, with an average temperature fluctuating between 35.1°F (1.7°C) and 52.3°F (11.3°C). A subtle rise in the average high-temperature is observed during April, adjusting from a chilly 45°F (7.2°C) in March to a cool 52.3°F (11.3°C). Weather in April »

Weather in May

May, the last month of the spring in Union Center, is a comfortable month, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 63°F (17.2°C). May's onset witnesses a shift in the average high-temperature, moving from a cool 52.3°F (11.3°C) in April to an enjoyable 63°F (17.2°C). Weather in May »

Weather in June

June, the first month of the summer in Union Center, is a moderately hot month, with an average temperature ranging between min 55.2°F (12.9°C) and max 76.1°F (24.5°C). Union Center in June shows a temperature shift, moving from an average high of a refreshing 63°F (17.2°C) in May to a warm 76.1°F (24.5°C). Weather in June »

Weather in July

July, like June, in Union Center, South Dakota, is another warm summer month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 84.7°F (29.3°C). With its high average temperature of 84.7°F (29.3°C) and a low of 62.4°F (16.9°C), July is regarded as the warmest month. July's mean heat index is computed to be a hot 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Union Center, is another warm month, with an average temperature ranging between max 82.6°F (28.1°C) and min 61.2°F (16.2°C). Union Center, South Dakota, measures an average high-temperature of a still moderately hot 82.6°F (28.1°C) in August, nearly consistent with the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Union Center, South Dakota, with an average temperature varying between 73.8°F (23.2°C) and 53.4°F (11.9°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a moderately hot 82.6°F (28.1°C) to a still warm 73.8°F (23.2°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Union Center, South Dakota, with temperature in the range of an average high of 56.3°F (13.5°C) and an average low of 40.1°F (4.5°C). The transition from September to October brings a clear temperature drop, with average high-temperatures decreasing from a warm 73.8°F (23.2°C) to a refreshing 56.3°F (13.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Union Center, South Dakota, with an average temperature fluctuating between 29.5°F (-1.4°C) and 44.8°F (7.1°C). Union Center's weather in November involves a decrease in the average high-temperature, moving down from October's refreshing 56.3°F (13.5°C) to a chilly 44.8°F (7.1°C). Weather in November »

Weather in December

December, the first month of the winter in Union Center, is also an icy month, with an average temperature varying between 32.2°F (0.1°C) and 18.9°F (-7.3°C). Union Center's coldest month, December, registers temperatures that range from a high of 32.2°F (0.1°C) to a low of 18.9°F (-7.3°C). Weather in December »
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Frequently asked questions

What is the most humid month in Union Center?

January is the most humid month, with an average relative humidity of 77%.

What is the driest month in Union Center?

January is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Union Center?

Throughout the year, in Union Center, South Dakota, there are 126.3 rainfall days, and 16.77" (426mm) of precipitation is accumulated.

When does it snow in Union Center?

Months with snowfall in Union Center, South Dakota, are January through May, September through December.

How much does it snow in Union Center?

In Union Center, South Dakota, during the entire year, snow falls for 62.1 days and aggregates up to 36.26" (921mm) of snow.

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

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Union Center, South Dakota.

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

With an average of 5.9h of sunshine, February has the least sunshine of the year.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Union Center, South Dakota, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

When does it snow the most in Union Center?

April is the month with the most snowfall. Snow falls for 6.6 days and accumulates 8.23" (209mm) of snow.

What is the rainiest month in Union Center?

May is the month with the most rainfall in Union Center. Rain falls for 17.3 days and accumulates 2.52" (64mm) of precipitation.

When it does not snow in Union Center?

In Union Center, South Dakota, snow does not fall in June through August.

When are the longest days in Union Center?

With an average of 15h and 30min of daylight, June has the longest days of the year.

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

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

What time of the year is the hottest in Union Center?

Union Center's July weather, marked by an average high temperature of 84.7°F (29.3°C) and an average low temperature of 62.4°F (16.9°C), is the warmest in the year.

What are the least humid months in Union Center?

August and September, with an average relative humidity of 49%, are the least humid months.

What month has the most sunshine in Union Center?

August has the most sunshine of the year in Union Center, South Dakota, with an average of 11.7h of sunshine.

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

The lowest temperatures are recorded in December, with averages reaching a high of 32.2°F (0.1°C) and a low of 18.9°F (-7.3°C).

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

The month with the shortest days in Union Center, South Dakota, is December, with an average of 8h and 54min of daylight.

Average temperature
Union Center, SD

Average temperature - Union Center, SD

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (32.2°F).

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).

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Average pressure
Union Center, SD

Average pressure - Union Center, SD

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed
Union Center, SD

Average wind speed - Union Center, SD

The windiest month (with the highest average wind speed) is October (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

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Average humidity
Union Center, SD

Average humidity - Union Center, SD

The month with the highest relative humidity is January (77%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall
Union Center, SD

Average rainfall - Union Center, SD

The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days
Union Center, SD

Average rainfall days - Union Center, SD

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is December (5.8 days).

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Average snowfall
Union Center, SD

Average snowfall - Union Center, SD

The month with the highest snowfall is April (8.23").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Union Center, SD

Average snowfall days - Union Center, SD

The month with the highest number of snowfall days is February (12.8 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Union Center, SD

Average daylight / Average sunshine - Union Center, SD

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).

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Average sunshine days
Union Center, SD

Average sunshine days - Union Center, SD

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (9.4 days).

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Average UV index
Union Center, SD

Average UV index - Union Center, SD

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
Union Center, SD

Average visibility - Union Center, SD

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

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Union Center, South Dakota, USA

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