Climate and monthly weather forecast
Union, MS

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Weather in January

January, the same as December, is another fresh winter month in Union, Mississippi, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37°F (2.8°C). In Union, January is the coldest month, with temperatures averaging a high of 53.2°F (11.8°C) and a low of 37°F (2.8°C). Weather in January »

Weather in February

February, the last month of the winter in Union, is a mild month, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.5°F (14.7°C). Union starts February with an average high-temperature of a refreshing 58.5°F (14.7°C), hinting at a minimal fluctuation from January. Weather in February »

Weather in March

March, the first month of the spring in Union, is an enjoyable month, with an average temperature varying between 66.2°F (19°C) and 48°F (8.9°C). March marks a minor ascent in the average high-temperature, adjusting from February's refreshing 58.5°F (14.7°C) to a comfortable 66.2°F (19°C). Weather in March »

Weather in April

April in Union, Mississippi, is a moderately hot spring month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 75.7°F (24.3°C). The onset of April brings a temperature shift, with the average high-temperature moving from a comfortable 66.2°F (19°C) in March to a moderately hot 75.7°F (24.3°C). Weather in April »

Weather in May

The last month of the spring, May, is also a moderately hot month in Union, Mississippi, with an average temperature ranging between min 62.2°F (16.8°C) and max 82.9°F (28.3°C). A slight uplift in the average high-temperature marks May, adjusting from April's moderately hot 75.7°F (24.3°C) to a still warm 82.9°F (28.3°C). Weather in May »

Weather in June

June, the first month of the summer in Union, is a hot month, with an average temperature varying between 69.3°F (20.7°C) and 90.3°F (32.4°C). The shift into June is marked by a modest rise in the average high-temperature, moving from May's moderately hot 82.9°F (28.3°C) to a hot 90.3°F (32.4°C). Weather in June »

Weather in July

July, the same as June, in Union, Mississippi, is a hot summer month, with temperature in the range of an average low of 71.2°F (21.8°C) and an average high of 91.4°F (33°C). Union's temperature records reveal July as the warmest month, marked by average highs of 91.4°F (33°C) and lows of 71.2°F (21.8°C). July's heat index is computed to be a blazing hot 114.8°F (46°C). Weather in July »

Weather in August

August, the last month of the summer in Union, is another tropical month, with an average temperature ranging between max 91°F (32.8°C) and min 71.2°F (21.8°C). August notes an average high-temperature of a still hot 91°F (32.8°C), subtly differing from July's 91.4°F (33°C). Weather in August »

Weather in September

September, the first month of the autumn in Union, is still a hot month, with an average temperature varying between 66.6°F (19.2°C) and 86.5°F (30.3°C). Union experiences a recorded average high-temperature of a still hot 86.5°F (30.3°C) in September, closely aligned with August's 91°F (32.8°C). Weather in September »

Weather in October

October, the same as September, is a moderately hot autumn month in Union, Mississippi, with an average temperature ranging between max 76.1°F (24.5°C) and min 55.6°F (13.1°C). October weather is marked by a drop in the average high-temperature, falling from a hot 86.5°F (30.3°C) in September to a moderately hot 76.1°F (24.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Union, is another comfortable month, with an average temperature fluctuating between 63.5°F (17.5°C) and 45.5°F (7.5°C). In November, the average high-temperature goes from a warm 76.1°F (24.5°C) in October to an enjoyable 63.5°F (17.5°C). Weather in November »

Weather in December

December, the first month of the winter in Union, is still a mild month, with an average temperature fluctuating between 56.3°F (13.5°C) and 41.4°F (5.2°C). The arrival of December correlates with a minor temperature reduction, down from November's refreshing 63.5°F (17.5°C) to a moderate 56.3°F (13.5°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Union?

Union, Mississippi, experiences its lowest temperatures in January, with an average peak of 53.2°F (11.8°C) and a low of 37°F (2.8°C).

How much does it rain in Union?

In Union, Mississippi, during the entire year, the rain falls for 162.2 days and collects up to 34.8" (884mm) of precipitation.

When does it snow in Union?

Months with snowfall in Union are January through March and December.

When does it snow the most in Union?

The month with the most snowfall is January, when snow falls for 1.1 days and typically aggregates up to 0.51" (13mm) of snow.

How much does it snow in Union?

Throughout the year, in Union, Mississippi, there are 3.1 snowfall days, and 1.14" (29mm) of snow is accumulated.

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

The months with the lowest UV index in Union, Mississippi, are January and December, with an average maximum UV index of 3.

What is the month with the least sunshine in Union?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Union.

When is Daylight Saving Time (DST) in Union?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Union, Mississippi, 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.

When it does not snow in Union?

April through November are months without snowfall in Union.

When are the longest days in Union?

The month with the longest days in Union, Mississippi, is June, with an average of 14h and 18min of daylight.

What month has the most sunshine in Union?

The month with the most sunshine is June, with an average of 10.5h of sunshine.

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

June and July, with an average maximum UV index of 7, are months with the highest UV index in Union, Mississippi.

What part of the year is the hottest in Union?

Temperature readings reach their annual highs in July, averaging 91.4°F (33°C) and a minimum average of 71.2°F (21.8°C).

What is the least humid month in Union?

October is the least humid month in Union, Mississippi, with an average relative humidity of 70%.

What is the driest month in Union?

The month with the least rainfall in Union is November, when the rain falls for 8.6 days and typically collects 2.09" (53mm) of precipitation.

What is the most humid month in Union?

December is the most humid month, with an average relative humidity of 81%.

What is the wettest month in Union?

The month with the most rainfall is December, when the rain falls for 12.5 days and typically aggregates up to 3.54" (90mm) of precipitation.

What is the month with the shortest days in Union?

December has the shortest days of the year in Union, Mississippi, with an average of 10h and 6min of daylight.

Average temperature
Union, MS

Average temperature - Union, MS

The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (53.2°F).

The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).

Average pressure
Union, MS

Average pressure - Union, MS

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed
Union, MS

Average wind speed - Union, MS

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity
Union, MS

Average humidity - Union, MS

The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall
Union, MS

Average rainfall - Union, MS

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is November (2.09").

Average rainfall days
Union, MS

Average rainfall days - Union, MS

The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (8.6 days).

Average snowfall
Union, MS

Average snowfall - Union, MS

The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days
Union, MS

Average snowfall days - Union, MS

The month with the highest number of snowfall days is January (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Union, MS

Average daylight / Average sunshine - Union, MS

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days
Union, MS

Average sunshine days - Union, MS

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (8.8 days).

Average cloud cover
Union, MS

Average cloud cover - Union, MS

The months with the most cloud cover are February and December (Cloud cover 48).
The months with the least cloud cover are September and October (Cloud cover 30).

Average visibility
Union, MS

Average visibility - Union, MS

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

Union, Mississippi, USA

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