July weather forecastJefferson, WI
July
Weather in July
July, the same as June, is another warm summer month in Jefferson, Wisconsin, with an average temperature fluctuating between 61.5°F (16.4°C) and 79.3°F (26.3°C).Temperature
July temperatures tend to peak at an average high of 79.3°F (26.3°C) and dip to a low of 61.5°F (16.4°C).Humidity
In July, the average relative humidity in Jefferson, Wisconsin, is 83%.Rainfall
In Jefferson, in July, during 17.4 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Jefferson, during the entire year, the rain falls for 149.4 days and collects up to 28.82" (732mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 59min.On the first day of July in Jefferson, sunrise is at 5:20 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:45 am and sunset at 8:17 pm CDT.
Sunshine
With an average of 9.8h of sunshine, July has the most sunshine of the year in Jefferson.UV index
In July, the average daily maximum UV index in Jefferson is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during July translates into the following guidance:
Act with care - Obligation to protect against skin and eye damage is highlighted. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jefferson, WI
- Average high temperature in July: 79.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in July: 61.5°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in July
Jefferson, 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
Jefferson, WI
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in July
Jefferson, WI
- Average humidity in July: 83%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in July
Jefferson, WI
- Average rainfall in July: 3.27"
The wettest month (with the highest rainfall) is June (3.78").
The driest months (with the least rainfall) are January and February (1.42").
Average rainfall days in July
Jefferson, WI
- Average rainfall days in July: 17.4 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (5 days).
Average snowfall in July
Jefferson, WI
- Average snowfall in July: 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 July
Jefferson, WI
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Jefferson, 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 6min).
- Average sunshine in July: 9h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in July
Jefferson, WI
- Average sunshine days in July: 10 days
The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in July
Jefferson, 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
Jefferson, WI
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in July
Jefferson, WI
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).





