July weather forecastJanesville, WI
July
Weather in July
July in Janesville, Wisconsin, is the pinnacle of the midwest summer, dominated by long, sun-filled days and high temperatures. This peak summer month allows residents to take full advantage of the wide array of outdoor delights Janesville offers. It serves as the hottest period, with averages soaring to around 79.7°F (26.5°C). Allowing for beach visits, water sports, or enjoying local ice cream parlors becomes inviting. July epitomizes the vacation season, making it an ideal time for a delightful family trip.Temperature
Janesville experiences its highest average temperatures in July, reaching a peak of 79.7°F (26.5°C) and a minimum of 62.4°F (16.9°C).Humidity
In Janesville, Wisconsin, the average relative humidity in July is 84%.Rainfall
In Janesville, in July, during 15.6 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Janesville, during the entire year, the rain falls for 127.7 days and collects up to 17.87" (454mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in July is 14h and 57min.On the first day of July in Janesville, sunrise is at 5:22 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:17 pm CDT.
Sunshine
July and August, with an average of 9.7h of sunshine, are months with the most sunshine.UV index
In Janesville, the average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in July leads to these recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Janesville, WI
- Average high temperature in July: 79.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in July: 62.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in July
Janesville, WI
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Janesville, WI
- Average wind speed in July: 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 (6.4mph).
Average humidity in July
Janesville, WI
- Average humidity in July: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in July
Janesville, WI
- Average rainfall in July: 2.2"
The wettest month (with the highest rainfall) is June (2.76").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in July
Janesville, WI
- Average rainfall days in July: 15.6 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in July
Janesville, WI
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Janesville, WI
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Janesville, WI
- Average daylight in July: 14h 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 July: 9h and 42min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in July
Janesville, WI
- Average sunshine days in July: 12.2 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in July
Janesville, WI
- Average UV index in July: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Janesville, WI
- Average cloud cover in July: 36
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in July
Janesville, WI
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





