Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
During August, the average high-temperature is a still warm 78.6°F (25.9°C), maintaining a close resemblance to that of the preceding month. Gretna, during the month of August, experiences an average low-temperature of 61°F (16.1°C).Humidity
In Gretna, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 7.2 days. Throughout August, 0.55" (14mm) of precipitation is accumulated. In Gretna, during the entire year, the rain falls for 82.2 days and collects up to 6.02" (153mm) of precipitation.Snowfall
In Gretna, snow does not fall in May through September.Daylight
In August, the average length of the day in Gretna, Ohio, is 13h and 43min.On the first day of the month, sunrise is at 6:33 am and sunset at 8:49 pm. On the last day of August, in Gretna, Ohio, sunrise is at 7:02 am and sunset at 8:08 pm EDT.
Sunshine
In August, the average sunshine in Gretna is 9.8h.UV index
The months with the highest UV index are June and August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What is the usual temperature for Gretna in August?
What is the average humidity in August in Gretna?
How much does it rain in Gretna in August?
When it does not snow in Gretna?
How many hours of daylight does Gretna have in August?
What time are sunrise and sunset in August in Gretna?
How many hours of sunshine does Gretna have in August?
What are the months with the highest UV index in Gretna?
What is the UV index intensity in August in Gretna?
Average temperature in August
Gretna, OH
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in August: 61°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in August
Gretna, OH
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Gretna, OH
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
Gretna, 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
Gretna, OH
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is June (0.75").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in August
Gretna, OH
- Average rainfall days in August: 7.2 days
The month with the highest number of rainy days is May (10 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in August
Gretna, OH
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Gretna, OH
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Gretna, OH
- Average daylight in August: 13h and 4min
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 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in August
Gretna, OH
- Average sunshine days in August: 19 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is May (17.5 days).
Average UV index in August
Gretna, OH
- Average UV index in August: 6
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Gretna, OH
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Gretna, OH
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
Gretna, Ohio, USA
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