August weather forecastUnion, WV
August
Weather in August
August, the last month of the summer in Union, is also a moderately hot month, with an average temperature varying between 56.3°F (13.5°C) and 79.9°F (26.6°C).Temperature
As Union welcomes August, the average high-temperature is noted at a still warm 79.9°F (26.6°C), closely aligning with the preceding month. August is characterized by a distinct thermal shift, with nighttime lows averaging at a mild 56.3°F (13.5°C).Humidity
In Union, the average relative humidity in August is 79%.Rainfall
In Union, in August, it is raining for 16.9 days, with typically 2.36" (60mm) of accumulated precipitation. In Union, during the entire year, the rain falls for 183.6 days and collects up to 31.61" (803mm) of precipitation.Snowfall
In Union, snow does not fall in June through September.Daylight
In August, the average length of the day is 13h and 34min.On the first day of August in Union, sunrise is at 6:26 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 7:52 pm EDT.
Sunshine
In Union, West Virginia, the average sunshine in August is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In August, the maximum UV index of 5 suggests these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Union, WV
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in August: 56.3°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in August
Union, WV
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in August
Union, WV
- Average wind speed in August: 4mph
The windiest months (with the highest average wind speed) are January and February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in August
Union, WV
- Average humidity in August: 79%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is June (78%).
Average rainfall in August
Union, WV
- Average rainfall in August: 2.36"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in August
Union, WV
- Average rainfall days in August: 16.9 days
The month with the highest number of rainy days is May (22.2 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in August
Union, WV
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Union, WV
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Union, WV
- Average daylight in August: 13h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in August
Union, WV
- Average sunshine days in August: 11 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in August
Union, WV
- Average UV index in August: 5
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, February, March, November and December (UV index 2).
Average cloud cover in August
Union, WV
- Average cloud cover in August: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in August
Union, WV
- Average visibility in August: 4mi
The months with the highest visibility are March, April, June, July, November and December (5mi).
The months with the lowest visibility are January, February, May, August, September and October (4mi).





