August weather forecastMount Sterling, WI
August
Weather in August
The last month of the summer, August, is another warm month in Mount Sterling, Wisconsin, with an average temperature fluctuating between 79.2°F (26.2°C) and 59°F (15°C).Temperature
Mount Sterling indicates an average high-temperature of a still warm 79.2°F (26.2°C) in August, showing minor variation from July's 80.2°F (26.8°C). Throughout the month of August, the average temperature dips to a refreshing 59°F (15°C) at night.Humidity
The average relative humidity in August is 80%.Rainfall
In Mount Sterling, in August, during 13.1 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Mount Sterling, during the entire year, the rain falls for 142.4 days and collects up to 28.66" (728mm) of precipitation.Snowfall
In Mount Sterling, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 55min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:25 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:40 pm CDT.
Sunshine
The average sunshine in August is 9.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in August leads to these guidelines:
Be vigilant - Preventing sunburn is recommended. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Mount Sterling, WI
- Average high temperature in August: 79.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in August: 59°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in August
Mount Sterling, WI
- Average pressure in August: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Mount Sterling, WI
- Average wind speed in August: 6.4mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in August
Mount Sterling, WI
- Average humidity in August: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in August
Mount Sterling, WI
- Average rainfall in August: 2.2"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in August
Mount Sterling, WI
- Average rainfall days in August: 13.1 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in August
Mount Sterling, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Mount Sterling, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Mount Sterling, WI
- Average daylight in August: 13h and 54min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in August: 9h and 48min
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 24min).
Average sunshine days in August
Mount Sterling, WI
- Average sunshine days in August: 14.4 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in August
Mount Sterling, WI
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Mount Sterling, WI
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in August
Mount Sterling, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
