July weather forecastGrafton, WI
July
Weather in July
July is a moderately hot summer month in Grafton, Wisconsin, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 76.1°F (24.5°C).Temperature
In Grafton, the month of July is known for its highest average temperatures, reaching a high of 76.1°F (24.5°C) and a low of 63.1°F (17.3°C).Humidity
In July, the average relative humidity is 80%.Rainfall
July is the month with the most rainfall. Rain falls for 15.7 days and accumulates 2.99" (76mm) of precipitation.Snowfall
In Grafton, Wisconsin, snow does not fall in May through September.Daylight
In Grafton, the average length of the day in July is 15h and 1min.On the first day of July, sunrise is at 5:15 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:14 pm CDT.
Sunshine
The months with the most sunshine are July and August, with an average of 10.4h of sunshine.UV index
The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Grafton, WI
- Average high temperature in July: 76.1°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in July: 63.1°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in July
Grafton, WI
- Average pressure in July: 29.96"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Grafton, WI
- Average wind speed in July: 7.5mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in July
Grafton, WI
- Average humidity in July: 80%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April, October and November (77%).
Average rainfall in July
Grafton, WI
- Average rainfall in July: 2.99"
The wettest month (with the highest rainfall) is July (2.99").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in July
Grafton, WI
- Average rainfall days in July: 15.7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in July
Grafton, WI
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.43").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Grafton, WI
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Grafton, WI
- Average daylight in July: 15h and 0min
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 0min).
- Average sunshine in July: 10h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in July
Grafton, WI
- Average sunshine days in July: 11.6 days
The month with the most sunshine days is December (16.4 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in July
Grafton, WI
- Average UV index in July: 6
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 July
Grafton, WI
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in July
Grafton, WI
- Average visibility in July: 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).
