July weather forecastRiverwoods, IL
July
Weather in July
July, like June, in Riverwoods, Illinois, is a moderately hot summer month, with an average temperature varying between 66.6°F (19.2°C) and 80.2°F (26.8°C).Temperature
In Riverwoods, temperatures reach their average annual highs in July, measuring 80.2°F (26.8°C) and a minimum average of 66.6°F (19.2°C).Humidity
The average relative humidity in July is 77%.Rainfall
In Riverwoods, in July, it is raining for 14.1 days, with typically 2.4" (61mm) of accumulated precipitation. In Riverwoods, during the entire year, the rain falls for 143.1 days and collects up to 26.97" (685mm) of precipitation.Snowfall
In Riverwoods, Illinois, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 54min.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 Riverwoods, sunrise is at 5:44 am and sunset at 8:11 pm CDT.
Sunshine
In July, the average sunshine is 10.4h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Riverwoods. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily high UV index of 6 in July leads to these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Riverwoods, IL
- Average high temperature in July: 80.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in July: 66.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in July
Riverwoods, 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
Riverwoods, IL
- Average wind speed in July: 6.9mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in July
Riverwoods, IL
- Average humidity in July: 77%
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
Riverwoods, IL
- Average rainfall in July: 2.4"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in July
Riverwoods, IL
- Average rainfall days in July: 14.1 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in July
Riverwoods, IL
- Average snowfall in July: 0"
The months with the highest snowfall are January and February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Riverwoods, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Riverwoods, 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 12min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in July
Riverwoods, IL
- Average sunshine days in July: 15.4 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (10.4 days).
Average UV index in July
Riverwoods, 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
Riverwoods, IL
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in July
Riverwoods, 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).
