August weather forecastDelafield, WI
August
Weather in August
August, the last month of the summer in Delafield, is also a moderately hot month, with an average temperature ranging between max 77.4°F (25.2°C) and min 60.4°F (15.8°C).Temperature
As August unfolds, the average high-temperature reaches a still moderately hot 77.4°F (25.2°C), hinting at a slight fluctuation from the previous month. The low-temperature in Delafield averages to a refreshing 60.4°F (15.8°C) during the nights of August.Humidity
In Delafield, the average relative humidity in August is 82%.Rainfall
In August, the rain falls for 15.2 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. Throughout the year, in Delafield, there are 127.5 rainfall days, and 18.94" (481mm) of precipitation is accumulated.Snowfall
In Delafield, snow does not fall in June through September.Daylight
The average length of the day in August in Delafield, Wisconsin, is 13h and 53min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:14 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:29 pm CDT.
Sunshine
August has the most sunshine of the year in Delafield, with an average of 9.9h of sunshine.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Delafield. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 5 during August leads to these advisories:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Delafield, WI
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in August
Delafield, WI
- Average pressure in August: 29.97"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in August
Delafield, WI
- Average wind speed in August: 6.5mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Delafield, WI
- Average humidity in August: 82%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in August
Delafield, WI
- Average rainfall in August: 2.09"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in August
Delafield, WI
- Average rainfall days in August: 15.2 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in August
Delafield, WI
- Average snowfall in August: 0"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Delafield, WI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Delafield, 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 54min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in August
Delafield, WI
- Average sunshine days in August: 12.6 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in August
Delafield, 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 and December (UV index 1).
Average cloud cover in August
Delafield, WI
- Average cloud cover in August: 32
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in August
Delafield, WI
- Average visibility in August: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





