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
August's weather displays an average high-temperature of a still warm 77.5°F (25.3°C), slightly varied from July's 78.4°F (25.8°C). August nights in Green Valley experience a consistent temperature drop to a mild 58.6°F (14.8°C).Humidity
In August, the average relative humidity is 77%.Rainfall
In Green Valley, Wisconsin, in August, during 13.7 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 134.3 rainfall days, and 24.06" (611mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Green Valley, Wisconsin, the average length of the day in August is 14h and 0min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:18 pm. On the last day of August, in Green Valley, sunrise is at 6:15 am and sunset at 7:31 pm CDT.
Sunshine
In Green Valley, the average sunshine in August is 10.1h.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 5 in August translates into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Green Valley in August?
What is the average humidity in August in Green Valley?
How many days does it rain in August in Green Valley?
When it does not snow in Green Valley?
What is the average length of the day in August in Green Valley?
When are sunrise and sunset in August in Green Valley?
How long on average sun shines in August in Green Valley?
What are the months with the highest UV index in Green Valley?
How high is the UV index in August in Green Valley?
Average temperature in August
Green Valley, WI
- Average high temperature in August: 77.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in August: 58.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in August
Green Valley, WI
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Green Valley, WI
- Average wind speed in August: 7mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in August
Green Valley, WI
- Average humidity in August: 77%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in August
Green Valley, WI
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in August
Green Valley, WI
- Average rainfall days in August: 13.7 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in August
Green Valley, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Green Valley, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Green Valley, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in August
Green Valley, WI
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is September (16.9 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in August
Green Valley, WI
- Average UV index in August: 5
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January and March (UV index 1).
Average cloud cover in August
Green Valley, WI
- Average cloud cover in August: 32
The months with the most cloud cover are January and February (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in August
Green Valley, WI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Green Valley, Wisconsin, USA
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