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
Custer observes an average high-temperature of a still warm 76.1°F (24.5°C) in August, barely different from 77.4°F (25.2°C) in July. In August, the recorded average low-temperature is a moderate 58.1°F (14.5°C).Humidity
In Custer, the average relative humidity in August is 80%.Rainfall
In Custer, in August, during 13.4 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. Throughout the year, in Custer, there are 123.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.Snowfall
In Custer, snow does not fall in June through September.Daylight
In Custer, the average length of the day in August is 13h and 59min.On the first day of August, sunrise is at 5:45 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:35 pm CDT.
Sunshine
In August, the average sunshine is 9.4h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 5 in August leads to these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in August?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Custer have in August?
When is the sunrise / sunset in August?
How many hours of sunshine does Custer have in August?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Custer, WI
- Average high temperature in August: 76.1°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (20.5°F).
- Average low temperature in August: 58.1°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in August
Custer, WI
- Average pressure in August: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Custer, WI
- Average wind speed in August: 7.2mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in August
Custer, WI
- Average humidity in August: 80%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Custer, WI
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in August
Custer, WI
- Average rainfall days in August: 13.4 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in August
Custer, WI
- Average snowfall in August: 0"
The month with the highest snowfall is December (5.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Custer, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Custer, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in August
Custer, WI
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is November (17 days).
The months with the least sunshine days are April, May and June (12.7 days).
Average UV index in August
Custer, 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, February, November and December (UV index 1).
Average cloud cover in August
Custer, WI
- Average cloud cover in August: 36
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in August
Custer, WI
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Custer, Wisconsin, USA
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