August weather forecastMonona, WI
August
Weather in August
August, the last month of the summer in Monona, is also a moderately hot month, with an average temperature fluctuating between 77.4°F (25.2°C) and 59.5°F (15.3°C).Temperature
With August's arrival, Monona's weather records an average high-temperature of a still warm 77.4°F (25.2°C), marking little difference from July's 78.6°F (25.9°C). Monona records an average low-temperature of 59.5°F (15.3°C) throughout the month of August.Humidity
In Monona, the average relative humidity in August is 82%.Rainfall
In Monona, in August, it is raining for 5.4 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 50.2 rainfall days, and 4.76" (121mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In August, the average length of the day is 13h and 53min.On the first day of August, sunrise is at 5:48 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:21 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 value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In August, the maximum UV index of 5 suggests this advice:
Guard yourself - Avoiding sunburn is suggested. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Monona, 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 (23.9°F).
- Average low temperature in August: 59.5°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 (10.8°F).
Average pressure in August
Monona, WI
- Average pressure in August: 29.97"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
Monona, WI
- Average wind speed in August: 6.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in August
Monona, WI
- Average humidity in August: 82%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in August
Monona, WI
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is July (0.63").
The driest months (with the least rainfall) are January, March, November and December (0.24").
Average rainfall days in August
Monona, WI
- Average rainfall days in August: 5.4 days
The month with the highest number of rainy days is June (6.7 days).
The month with the least rainy days is January (1.1 days).
Average snowfall in August
Monona, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Monona, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Monona, 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 6min).
- Average sunshine in August: 9h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in August
Monona, WI
- Average sunshine days in August: 22.5 days
The month with the most sunshine days is December (27 days).
The month with the least sunshine days is June (19.8 days).
Average UV index in August
Monona, WI
- Average UV index in August: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in August
Monona, WI
- Average cloud cover in August: 34
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Monona, WI
- Average visibility in August: 5mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
