July weather forecastSycamore, IL
July
Weather in July
July, like June, in Sycamore, Illinois, is another warm summer month, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C).Temperature
The warmest temperatures occur during July, when averages reach a peak of 80.2°F (26.8°C) and a low of 63.1°F (17.3°C).Humidity
January and July, with an average relative humidity of 85%, are the most humid months in Sycamore.Rainfall
In Sycamore, during July, the rain falls for 18.1 days and regularly aggregates up to 3.15" (80mm) of precipitation. Throughout the year, in Sycamore, Illinois, there are 152.6 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
In Sycamore, Illinois, snow does not fall in June through September.Daylight
In July, the average length of the day is 14h and 53min.On the first day of the month, sunrise is at 5:23 am and sunset at 8:34 pm. On the last day of July, in Sycamore, sunrise is at 5:48 am and sunset at 8:14 pm CDT.
Sunshine
July has the most sunshine of the year in Sycamore, with an average of 9.6h of sunshine.UV index
In July, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in July transforms into the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Sycamore, 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 (27°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 (15.1°F).
Average pressure in July
Sycamore, 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
Sycamore, IL
- Average wind speed in July: 6.4mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in July
Sycamore, IL
- Average humidity in July: 85%
The months with the highest relative humidity are January and July (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in July
Sycamore, IL
- Average rainfall in July: 3.15"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in July
Sycamore, IL
- Average rainfall days in July: 18.1 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in July
Sycamore, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Sycamore, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Sycamore, 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: 9h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in July
Sycamore, IL
- Average sunshine days in July: 10.3 days
The month with the most sunshine days is November (17.2 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in July
Sycamore, IL
- Average UV index in July: 5
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Sycamore, IL
- Average cloud cover in July: 37
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in July
Sycamore, IL
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).





