August weather forecastUnion, OH
August
Weather in August
The last month of the summer, August, is another warm month in Union, Ohio, with an average temperature varying between 62.4°F (16.9°C) and 80.1°F (26.7°C).Temperature
The dawn of August sees an average high-temperature of a still warm 80.1°F (26.7°C), subtly contrasting with July's 81.1°F (27.3°C). Nighttime temperatures hover around an average low of 62.4°F (16.9°C) in August.Humidity
In August, the average relative humidity in Union, Ohio, is 80%.Rainfall
In Union, Ohio, during August, the rain falls for 12.4 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Union, during the entire year, the rain falls for 133.9 days and collects up to 14.45" (367mm) of precipitation.Snowfall
In Union, snow does not fall in May through October.Daylight
In August, the average length of the day is 13h and 42min.On the first day of the month, sunrise is at 6:36 am and sunset at 8:50 pm. On the last day of August, in Union, sunrise is at 7:04 am and sunset at 8:09 pm EDT.
Sunshine
The average sunshine in August in Union, Ohio, is 10h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Union, OH
- Average high temperature in August: 80.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in August: 62.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in August
Union, OH
- Average pressure in August: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Union, OH
- Average wind speed in August: 5.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in August
Union, OH
- Average humidity in August: 80%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in August
Union, OH
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in August
Union, OH
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in August
Union, OH
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Union, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.2 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, OH
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in August: 10h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in August
Union, OH
- Average sunshine days in August: 15.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in August
Union, OH
- Average UV index in August: 6
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).
Average cloud cover in August
Union, OH
- Average cloud cover in August: 29
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Union, OH
- Average visibility in August: 6mi
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).





