August weather forecastPorterfield, WI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Porterfield, Wisconsin, with an average temperature varying between 59.9°F (15.5°C) and 74.5°F (23.6°C).Temperature
The warmest period is August, when temperatures fluctuate between an average high of 74.5°F (23.6°C) and a low of 59.9°F (15.5°C).Humidity
In Porterfield, Wisconsin, the average relative humidity in August is 78%.Rainfall
In Porterfield, in August, during 13.8 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 129.7 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
In Porterfield, snow does not fall in June through September.Daylight
In Porterfield, the average length of the day in August is 14h and 2min.On the first day of August in Porterfield, sunrise is at 5:37 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:29 pm CDT.
Sunshine
The months with the most sunshine in Porterfield are July and August, with an average of 10.3h of sunshine.UV index
June through August, with an average maximum UV index of 5, are months with the highest UV index in Porterfield, Wisconsin. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 5 during August translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Porterfield, WI
- Average high temperature in August: 74.5°F
The warmest month (with the highest average high temperature) is August (74.5°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in August: 59.9°F
The months with the highest average low temperature are July and August (59.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in August
Porterfield, WI
- Average pressure in August: 29.95"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Porterfield, WI
- Average wind speed in August: 7.8mph
The windiest months (with the highest average wind speed) are November and December (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in August
Porterfield, WI
- Average humidity in August: 78%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and November (76%).
Average rainfall in August
Porterfield, WI
- Average rainfall in August: 2.05"
The wettest months (with the highest rainfall) are May, June and October (2.8").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in August
Porterfield, WI
- Average rainfall days in August: 13.8 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in August
Porterfield, WI
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Porterfield, WI
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and February (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Porterfield, WI
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 10h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in August
Porterfield, WI
- Average sunshine days in August: 15.2 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in August
Porterfield, 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 and December (UV index 1).
Average cloud cover in August
Porterfield, WI
- Average cloud cover in August: 30
The month with the most cloud cover is February (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in August
Porterfield, WI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





