August weather forecastSpring Valley, WI
August
Weather in August
The last month of the summer, August, is another warm month in Spring Valley, Wisconsin, with an average temperature fluctuating between 76.6°F (24.8°C) and 58.5°F (14.7°C).Temperature
The commencement of August brings an average high-temperature of a still warm 76.6°F (24.8°C), marking an inconsequential divergence from July. In Spring Valley, the average nighttime temperature during August is a mild 58.5°F (14.7°C).Humidity
In Spring Valley, the average relative humidity in August is 81%.Rainfall
In August, in Spring Valley, the rain falls for 15.1 days. Throughout August, 2.4" (61mm) of precipitation is accumulated. In Spring Valley, during the entire year, the rain falls for 128.4 days and collects up to 25" (635mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August in Spring Valley, Wisconsin, is 14h and 1min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:34 pm. On the last day of August, sunrise is at 6:30 am and sunset at 7:47 pm CDT.
Sunshine
The average sunshine in August in Spring Valley is 9.6h.UV index
In Spring Valley, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Spring Valley, WI
- Average high temperature in August: 76.6°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 (19.2°F).
- Average low temperature in August: 58.5°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure in August
Spring Valley, WI
- Average pressure in August: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in August
Spring Valley, WI
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Spring Valley, WI
- Average humidity in August: 81%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in August
Spring Valley, WI
- Average rainfall in August: 2.4"
The wettest month (with the highest rainfall) is June (4.37").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in August
Spring Valley, WI
- Average rainfall days in August: 15.1 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (2.7 days).
Average snowfall in August
Spring Valley, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Spring Valley, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Spring 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: 9h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in August
Spring Valley, WI
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in August
Spring Valley, WI
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in August
Spring Valley, WI
- Average cloud cover in August: 33
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in August
Spring Valley, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
