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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in South Union, Kentucky, is a wintry winter month, with an average temperature ranging between min 28.8°F (-1.8°C) and max 42.3°F (5.7°C). January proves to be the coldest month, recording an average maximum temperature of 42.3°F (5.7°C) and a minimum temperature of 28.8°F (-1.8°C). Weather in January »
Weather in February
February, the last month of the winter in South Union, is a frosty month, with an average temperature ranging between max 47.7°F (8.7°C) and min 33.1°F (0.6°C). February begins with an average high-temperature of a chilly 47.7°F (8.7°C), reflecting close similarity to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in South Union, is a moderate month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 56.8°F (13.8°C). As March arrives, a rise in the average high-temperature is observed, moving from a chilly 47.7°F (8.7°C) in February to a refreshing 56.8°F (13.8°C). Weather in March »
Weather in April
April is a refreshing spring month in South Union, Kentucky, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 67.8°F (19.9°C). With the onset of April, South Union experiences a temperature shift, with the average high-temperature moving from a moderate 56.8°F (13.8°C) in March to an enjoyable 67.8°F (19.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in South Union, Kentucky, with an average temperature fluctuating between 76.6°F (24.8°C) and 58.3°F (14.6°C). May's onset witnesses a minor shift in the average high-temperature, moving from a refreshing 67.8°F (19.9°C) in April to a moderately hot 76.6°F (24.8°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in South Union, Kentucky, with an average temperature varying between 65.3°F (18.5°C) and 84.7°F (29.3°C). In South Union, the average high-temperature in June slightly increases from 76.6°F (24.8°C) in May to a still moderately hot 84.7°F (29.3°C). Weather in June »
Weather in July
July in South Union, Kentucky, is a hot summer month, with an average temperature fluctuating between 68.5°F (20.3°C) and 86.9°F (30.5°C). With average temperatures fluctuating between a high of 86.9°F (30.5°C) and a low of 68.5°F (20.3°C), July stands out as the warmest month. July's average heat index is estimated at a sweltering 102.2°F (39°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in South Union, Kentucky, with an average temperature varying between 85.5°F (29.7°C) and 66.7°F (19.3°C). As July transitions into August, the average high-temperature rests at a moderately hot 85.5°F (29.7°C), maintaining a close resemblance to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in South Union, Kentucky, with an average temperature varying between 61.7°F (16.5°C) and 80.1°F (26.7°C). South Union experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 85.5°F (29.7°C) in August to a still moderately hot 80.1°F (26.7°C). Weather in September »
Weather in October
October, like September, is another pleasant autumn month in South Union, Kentucky, with an average temperature ranging between min 50.4°F (10.2°C) and max 68.2°F (20.1°C). A subtle decrease in the average high-temperature marks October, falling from September's moderately hot 80.1°F (26.7°C) to an agreeable 68.2°F (20.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a moderate month in South Union, Kentucky, with an average temperature varying between 55.6°F (13.1°C) and 39.4°F (4.1°C). November's arrival comes with a decrease in the average high-temperature, moving from a pleasant 68.2°F (20.1°C) in October to a moderate 55.6°F (13.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in South Union, Kentucky, with an average temperature fluctuating between 47.3°F (8.5°C) and 34.5°F (1.4°C). December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's refreshing 55.6°F (13.1°C) to a chilly 47.3°F (8.5°C). Weather in December »
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
Temperature readings reach their annual highs in January, averaging 42.3°F (5.7°C) and a minimum average of 28.8°F (-1.8°C).
How much does it rain?
In South Union, during the entire year, the rain falls for 171.5 days and collects up to 37.2" (945mm) of precipitation.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
In South Union, during the entire year, snow falls for 14.8 days and aggregates up to 5.55" (141mm) of snow.
When is the lowest UV index?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 4 days and typically aggregates up to 1.65" (42mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.4h of sunshine.
What is the most humid month?
The months with the highest humidity are March, May and December, with an average relative humidity of 79%.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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?
May through October are months without snowfall.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
The month with the longest days is June, with an average of 14h and 36min of daylight.
What is the month with the most sunshine?
June and August, with an average of 10.4h of sunshine, are months with the most sunshine in South Union.
What time of the year is the hottest?
July registers as the month with the average highest temperatures, reaching 86.9°F (30.5°C) at its peak and 68.5°F (20.3°C) at the lowest.
What is the rainiest month in South Union?
The month with the most rainfall in South Union is July, when the rain falls for 19 days and typically aggregates up to 4.13" (105mm) of precipitation.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 14.4 days and typically collects 2.32" (59mm) of precipitation.
What is the least humid month?
October is the least humid month, with an average relative humidity of 74%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 42min of daylight.
Average temperature
South Union, KY
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (42.3°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure
South Union, KY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"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:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
South Union, KY
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.6mph - Average wind speed in March:
8.4mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.6mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5mph - Average wind speed in August:
5mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.8mph - Average wind speed in November:
7.4mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity
South Union, KY
The months with the highest relative humidity are March, May and December (79%).
The month with the lowest relative humidity is October (74%).
Average rainfall
South Union, KY
- Average rainfall in January:
2.52" - Average rainfall in February:
3.66" - Average rainfall in March:
2.99" - Average rainfall in April:
3.23" - Average rainfall in May:
3.66" - Average rainfall in June:
3.5"
- Average rainfall in July:
4.13" - Average rainfall in August:
3.5" - Average rainfall in September:
2.32" - Average rainfall in October:
2.36" - Average rainfall in November:
2.36" - Average rainfall in December:
2.95"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days
South Union, KY
- Average rainfall days in January:
11.2 days - Average rainfall days in February:
12.4 days - Average rainfall days in March:
15.1 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
17.3 days - Average rainfall days in September:
14.4 days - Average rainfall days in October:
10.7 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (10.2 days).
Average snowfall
South Union, KY
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
South Union, KY
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
4 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.3 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:
0.2 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
South Union, KY
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 4min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
7h and 0min - Average sunshine in November:
5h and 5min - Average sunshine in December:
4h and 4min
The months with the most sunshine are June and August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days
South Union, KY
- Average sunshine days in January:
16.3 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
12.2 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.7 days - Average sunshine days in June:
11.2 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
11.7 days - Average sunshine days in September:
14.6 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
16 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is July (9.9 days).
Average UV index
South Union, KY
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
South Union, KY
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility
South Union, KY
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
South Union, Kentucky, USA
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