August weather forecastRio, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Rio, Wisconsin, with an average temperature varying between 77.4°F (25.2°C) and 59.2°F (15.1°C).Temperature
The advent of August brings an average high-temperature of a still moderately hot 77.4°F (25.2°C), exhibiting minor difference from the previous month. An average low-temperature of 59.2°F (15.1°C) marks the month of August.Humidity
The average relative humidity in August is 81%.Rainfall
In Rio, Wisconsin, in August, it is raining for 12.8 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 134.5 rainfall days, and 26.97" (685mm) of precipitation is accumulated.Snowfall
In Rio, snow does not fall in June through September.Daylight
In August, the average length of the day in Rio is 13h and 55min.On the first day of August, sunrise is at 5:47 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:33 pm CDT.
Sunshine
The average sunshine in August is 9.7h.UV index
The average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 5 during August translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Rio, WI
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in August: 59.2°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in August
Rio, WI
- Average pressure in August: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Rio, WI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Rio, WI
- Average humidity in August: 81%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Rio, WI
- Average rainfall in August: 2.17"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in August
Rio, WI
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (4.2 days).
Average snowfall in August
Rio, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Rio, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Rio, 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
Rio, WI
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in August
Rio, 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, November and December (UV index 1).
Average cloud cover in August
Rio, WI
- Average cloud cover in August: 34
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 34).
Average visibility in August
Rio, WI
- Average visibility in August: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
