August weather forecastGranton, WI
August
Weather in August
August, the last month of the summer in Granton, is another warm month, with an average temperature varying between 76.3°F (24.6°C) and 57.7°F (14.3°C).Temperature
The onset of August manifests an average high-temperature of a still moderately hot 76.3°F (24.6°C), demonstrating a minor variation from the preceding month. In Granton, an average temperature of 57.7°F (14.3°C) is noted during August nights.Humidity
In August, the average relative humidity is 81%.Rainfall
In Granton, in August, it is raining for 11.6 days, with typically 1.65" (42mm) of accumulated precipitation. In Granton, during the entire year, the rain falls for 117.6 days and collects up to 15.75" (400mm) of precipitation.Snowfall
In Granton, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 5:49 am and sunset at 8:26 pm. On the last day of August, in Granton, sunrise is at 6:24 am and sunset at 7:39 pm CDT.
Sunshine
In August, the average sunshine in Granton, Wisconsin, is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 5 during August translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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
Granton, WI
- Average high temperature in August: 76.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in August
Granton, WI
- Average pressure in August: 29.95"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in August
Granton, WI
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in August
Granton, WI
- Average humidity in August: 81%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in August
Granton, WI
- Average rainfall in August: 1.65"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in August
Granton, WI
- Average rainfall days in August: 11.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in August
Granton, WI
- Average snowfall in August: 0"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Granton, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Granton, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 9h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in August
Granton, WI
- Average sunshine days in August: 16.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in August
Granton, 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, February, November and December (UV index 1).
Average cloud cover in August
Granton, WI
- Average cloud cover in August: 35
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in August
Granton, WI
- Average visibility in August: 5mi
The months with the highest visibility are April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August and December (5mi).





