July weather forecastLake Catherine, IL
July
Weather in July
July, the same as June, is another warm summer month in Lake Catherine, Illinois, with an average temperature varying between 79°F (26.1°C) and 63.1°F (17.3°C).Temperature
Lake Catherine's July weather, marked by an average high temperature of 79°F (26.1°C) and an average low temperature of 63.1°F (17.3°C), is the warmest in the year.Humidity
The average relative humidity in July is 83%.Rainfall
In Lake Catherine, during July, the rain falls for 18.5 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Lake Catherine, during the entire year, the rain falls for 139.6 days and collects up to 26.18" (665mm) of precipitation.Snowfall
In Lake Catherine, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 56min.On the first day of the month, sunrise is at 5:19 am and sunset at 8:33 pm. On the last day of July, sunrise is at 5:44 am and sunset at 8:13 pm CDT.
Sunshine
July and August, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, the maximum UV index of 5 suggests this advice:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Lake Catherine, IL
- Average high temperature in July: 79°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°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 (14.9°F).
Average pressure in July
Lake Catherine, IL
- Average pressure in July: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Lake Catherine, IL
- Average wind speed in July: 6.6mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in July
Lake Catherine, IL
- Average humidity in July: 83%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in July
Lake Catherine, IL
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in July
Lake Catherine, IL
- Average rainfall days in July: 18.5 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in July
Lake Catherine, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Lake Catherine, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Lake Catherine, IL
- Average daylight in July: 14h and 54min
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 6min).
- Average sunshine in July: 9h and 54min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).
Average sunshine days in July
Lake Catherine, IL
- Average sunshine days in July: 9.9 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in July
Lake Catherine, IL
- Average UV index in July: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Lake Catherine, IL
- Average cloud cover in July: 32
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).
Average visibility in July
Lake Catherine, 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).





