Climate and monthly weather forecastUnion, MS
Climate and monthly weather forecast
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 »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
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 in January:
7.8mph - Average wind speed in February:
7.9mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.5mph
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
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 in January:
3.27" - Average rainfall in February:
3.15" - Average rainfall in March:
3.03" - Average rainfall in April:
3.11" - Average rainfall in May:
2.36" - Average rainfall in June:
2.87"
- Average rainfall in July:
3.19" - Average rainfall in August:
3.19" - Average rainfall in September:
2.76" - Average rainfall in October:
2.24" - Average rainfall in November:
2.09" - Average rainfall in December:
3.54"
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 in January:
10.8 days - Average rainfall days in February:
13.5 days - Average rainfall days in March:
13.5 days - Average rainfall days in April:
11 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
20.6 days - Average rainfall days in August:
18.9 days - Average rainfall days in September:
13.8 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
12.5 days
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
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 in January:
1.1 days - Average snowfall days in February:
1 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
0.5 days
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 in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 6min
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).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 36min - Average sunshine in April:
9h and 24min - Average sunshine in May:
9h and 48min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 12min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 0min - Average sunshine in December:
4h and 48min
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 in January:
17.8 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
15.1 days - Average sunshine days in April:
17.5 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
8.8 days - Average sunshine days in August:
10.4 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
20.8 days - Average sunshine days in November:
20.3 days - Average sunshine days in December:
16.3 days
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 UV index
Union, MS
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
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
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).





