August weather forecastBoulder Junction, WI
August
Weather in August
The last month of the summer, August, is another warm month in Boulder Junction, Wisconsin, with an average temperature ranging between max 74.7°F (23.7°C) and min 55°F (12.8°C).Temperature
Transitioning from July to August, Boulder Junction observes an average high-temperature of a still warm 74.7°F (23.7°C), differing subtly from the previous month. The nighttime temperature dips to a cool 55°F (12.8°C) on average during August.Humidity
In Boulder Junction, the average relative humidity in August is 78%.Rainfall
In Boulder Junction, in August, during 15.4 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, in Boulder Junction, there are 128.5 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Snowfall
In Boulder Junction, Wisconsin, snow does not fall in June through September.Daylight
In Boulder Junction, Wisconsin, the average length of the day in August is 14h and 6min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:28 pm. On the last day of August, in Boulder Junction, sunrise is at 6:18 am and sunset at 7:38 pm CDT.
Sunshine
In Boulder Junction, the average sunshine in August is 9.1h.UV index
The months with the highest UV index in Boulder Junction are June through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 5 in August transforms into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. 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
Average temperature in August
Boulder Junction, WI
- Average high temperature in August: 74.7°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (18.5°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in August
Boulder Junction, WI
- Average pressure in August: 29.94"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Boulder Junction, WI
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in August
Boulder Junction, WI
- Average humidity in August: 78%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in August
Boulder Junction, WI
- Average rainfall in August: 2.09"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in August
Boulder Junction, WI
- Average rainfall days in August: 15.4 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in August
Boulder Junction, WI
- Average snowfall in August: 0"
The month with the highest snowfall is December (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Boulder Junction, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (26.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Boulder Junction, WI
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 9h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in August
Boulder Junction, WI
- Average sunshine days in August: 12.1 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (5 days).
Average UV index in August
Boulder Junction, 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, March, November and December (UV index 1).
Average cloud cover in August
Boulder Junction, WI
- Average cloud cover in August: 41
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in August
Boulder Junction, WI
- Average visibility in August: 5mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
