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
Lake Forest, Illinois, experiences its highest average temperatures in July, reaching a peak of 77.7°F (25.4°C) and a minimum of 66.7°F (19.3°C).Humidity
In July, the average relative humidity in Lake Forest is 78%.Rainfall
In July, the rain falls for 17.4 days. Throughout July, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 154.1 rainfall days, and 30.24" (768mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 55min.On the first day of the month, sunrise is at 5:19 am and sunset at 8:31 pm. On the last day of July, in Lake Forest, sunrise is at 5:43 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in July in Lake Forest is 10.6h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In July, a regular UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Lake Forest?
What is the temperature in July in Lake Forest?
What is the average humidity in July in Lake Forest?
How many days does it rain in July in Lake Forest?
When it does not snow in Lake Forest?
What is the average length of the day in July in Lake Forest?
When is the sunrise / sunset in July in Lake Forest?
How long on average sun shines in July in Lake Forest?
What are the months with the highest UV index in Lake Forest?
What is the UV index reading in July in Lake Forest?
Average temperature in July
Lake Forest, IL
- Average high temperature in July: 77.7°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in July: 66.7°F
The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in July
Lake Forest, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Lake Forest, IL
- Average wind speed in July: 7.5mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in July
Lake Forest, IL
- Average humidity in July: 78%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Lake Forest, IL
- Average rainfall in July: 3.23"
The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in July
Lake Forest, IL
- Average rainfall days in July: 17.4 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in July
Lake Forest, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Lake Forest, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lake Forest, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in July
Lake Forest, IL
- Average sunshine days in July: 11.5 days
The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in July
Lake Forest, 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
Lake Forest, IL
- Average cloud cover in July: 27
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 27).
Average visibility in July
Lake Forest, 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).
Lake Forest, Illinois, USA
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