August weather forecastJuneau, WI
August
Weather in August
August, the last month of the summer in Juneau, is also a moderately hot month, with an average temperature fluctuating between 59°F (15°C) and 77°F (25°C).Temperature
The advent of August sees the average high-temperature at a still moderately hot 77°F (25°C), subtly shifted from July's 78.4°F (25.8°C). Juneau, in the month of August, anticipates a consistent average low-temperature of 59°F (15°C).Humidity
The average relative humidity in August is 83%.Rainfall
In August, the rain falls for 11.8 days. Throughout August, 1.34" (34mm) of precipitation is accumulated. Throughout the year, there are 112 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Juneau.Daylight
In Juneau, the average length of the day in August is 13h and 55min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:18 am and sunset at 7:31 pm CDT.
Sunshine
In August, the average sunshine in Juneau is 9.7h.UV index
In August, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Juneau, WI
- Average high temperature in August: 77°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: 59°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in August
Juneau, 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
Juneau, WI
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in August
Juneau, WI
- Average humidity in August: 83%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Juneau, WI
- Average rainfall in August: 1.34"
The wettest month (with the highest rainfall) is June (1.93").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in August
Juneau, WI
- Average rainfall days in August: 11.8 days
The month with the highest number of rainy days is May (15 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in August
Juneau, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Juneau, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Juneau, WI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in August
Juneau, WI
- Average sunshine days in August: 16 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in August
Juneau, WI
- Average UV index in August: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Juneau, WI
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in August
Juneau, WI
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





