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
Rock Falls, Illinois, experiences its highest average temperatures in July, reaching a peak of 80.2°F (26.8°C) and a minimum of 63.9°F (17.7°C).Humidity
January and July, with an average relative humidity of 85%, are the most humid months.Rainfall
In Rock Falls, in July, during 14.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Rock Falls, there are 130.2 rainfall days, and 17.36" (441mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In July, the average length of the day is 14h and 52min.On the first day of the month, sunrise is at 5:28 am and sunset at 8:37 pm. On the last day of July, sunrise is at 5:52 am and sunset at 8:17 pm CDT.
Sunshine
The month with the most sunshine is July, with an average of 9.8h of sunshine.UV index
The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 6 during July, leads to the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month?
What are July temperatures?
What are the most humid months?
What is the average humidity in July?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July?
When are sunrise and sunset in July?
What month has the most sunshine?
How many hours of sunshine does Rock Falls have in July?
What is the month with the highest UV index?
What is the UV index intensity in July?
Average temperature in July
Rock Falls, 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 (27.7°F).
- Average low temperature in July: 63.9°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in July
Rock Falls, IL
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in July
Rock Falls, IL
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in July
Rock Falls, IL
- Average humidity in July: 85%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in July
Rock Falls, IL
- Average rainfall in July: 1.81"
The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in July
Rock Falls, IL
- Average rainfall days in July: 14.1 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in July
Rock Falls, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Rock Falls, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (10.2 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
Rock Falls, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in July
Rock Falls, IL
- Average sunshine days in July: 12.7 days
The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in July
Rock Falls, IL
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in July
Rock Falls, IL
- Average cloud cover in July: 34
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in July
Rock Falls, IL
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Rock Falls, Illinois, USA
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