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
With average high temperatures of 80.2°F (26.8°C) and lows of 63.9°F (17.7°C), July is the warmest month.Humidity
January and July, with an average relative humidity of 85%, are the most humid months.Rainfall
In July, the rain falls for 14.1 days. Throughout July, 1.81" (46mm) of precipitation is 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
The average length of the day in July is 14h and 52min.On the first day of July in Rock Falls, sunrise is at 5:28 am and sunset at 8:37 pm. On the last day of the month, 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 6 in July leads to these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What time of the year is the hottest in Rock Falls?
What is the temperature in July in Rock Falls?
What are the most humid months in Rock Falls?
What is the average humidity in July in Rock Falls?
How much does it rain in Rock Falls in July?
When it does not snow in Rock Falls?
What is the average length of the day in July in Rock Falls?
When is the sunrise / sunset in July in Rock Falls?
What month has the most sunshine in Rock Falls?
How long on average sun shines in July in Rock Falls?
What is the month with the highest UV index in Rock Falls?
What is the UV index reading in July in Rock Falls?
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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