August weather forecastGreenville, OH
August
Weather in August
August, the last month of the summer in Greenville, is another warm month, with an average temperature varying between 79.3°F (26.3°C) and 62.1°F (16.7°C).Temperature
With the transition into August, Greenville notes an average high-temperature of a still moderately hot 79.3°F (26.3°C), closely resembling July. Greenville's temperature tends to fall to an average low of 62.1°F (16.7°C) during the nights of August.Humidity
In Greenville, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 13.9 days. Throughout August, 1.77" (45mm) of precipitation is accumulated. In Greenville, Ohio, during the entire year, the rain falls for 145.2 days and collects up to 19.21" (488mm) of precipitation.Snowfall
In Greenville, snow does not fall in May through September.Daylight
The average length of the day in August is 13h and 43min.On the first day of August, sunrise is at 6:37 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 8:11 pm EDT.
Sunshine
In Greenville, the average sunshine in August is 9.7h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, the maximum UV index of 6 transforms into these recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Greenville, OH
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in August: 62.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in August
Greenville, 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
Greenville, OH
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
Greenville, OH
- Average humidity in August: 82%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in August
Greenville, OH
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in August
Greenville, OH
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in August
Greenville, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Greenville, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Greenville, 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: 9h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in August
Greenville, OH
- Average sunshine days in August: 14.2 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in August
Greenville, OH
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Greenville, OH
- Average cloud cover in August: 31
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in August
Greenville, OH
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).





