Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
With average high and low temperatures of 79.2°F (26.2°C) and 67.1°F (19.5°C) respectively, July is Winnetka's warmest month.Humidity
In July, the average relative humidity is 76%.Rainfall
In Winnetka, in July, during 18.4 rainfall days, 3.9" (99mm) of precipitation is typically accumulated. Throughout the year, there are 164.7 rainfall days, and 35.28" (896mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Winnetka, Illinois.Daylight
The average length of the day in July in Winnetka is 14h and 53min.On the first day of July, sunrise is at 5:19 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:10 pm CDT.
Sunshine
July and August, with an average of 10.4h of sunshine, are months with the most sunshine in Winnetka.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Winnetka. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 6 during July leads to these instructions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the hottest time of year in Winnetka?
What is the usual temperature for Winnetka in July?
What is the average humidity in July in Winnetka?
How much does it rain in Winnetka in July?
When it does not snow in Winnetka?
How many hours of daylight does Winnetka have in July?
What time are sunrise and sunset in July in Winnetka?
What are the months with the most sunshine in Winnetka?
How many hours of sunshine does Winnetka have in July?
What are the months with the highest UV index in Winnetka?
How high is the UV index in July in Winnetka?
Average temperature in July
Winnetka, IL
- Average high temperature in July: 79.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in July: 67.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in July
Winnetka, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Winnetka, IL
- Average wind speed in July: 7.3mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in July
Winnetka, IL
- Average humidity in July: 76%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Winnetka, IL
- Average rainfall in July: 3.9"
The wettest months (with the highest rainfall) are May and June (4.57").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in July
Winnetka, IL
- Average rainfall days in July: 18.4 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in July
Winnetka, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Winnetka, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Winnetka, IL
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 10h and 2min
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 42min).
Average sunshine days in July
Winnetka, IL
- Average sunshine days in July: 9.3 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in July
Winnetka, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Winnetka, IL
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in July
Winnetka, IL
- 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).
Winnetka, Illinois, USA
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