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
Stillman Valley's warmest month, July, generally records average temperatures ranging from a high of 79.9°F (26.6°C) to a low of 63.1°F (17.3°C).Humidity
In July, the average relative humidity is 85%.Rainfall
In Stillman Valley, in July, during 10.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, in Stillman Valley, there are 100.6 rainfall days, and 7.99" (203mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In July, the average length of the day in Stillman Valley is 14h and 53min.On the first day of the month, sunrise is at 5:24 am and sunset at 8:36 pm. On the last day of July, sunrise is at 5:49 am and sunset at 8:16 pm CDT.
Sunshine
July has the most sunshine of the year in Stillman Valley, with an average of 9.8h of sunshine.UV index
With an average maximum UV index of 6, July is the month with the highest UV index in Stillman Valley. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In July, a regular UV index of 6 translates into these guidelines:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest in Stillman Valley?
What is the usual temperature for Stillman Valley in July?
What is the average humidity in July in Stillman Valley?
How many days does it rain in July in Stillman Valley?
When it does not snow in Stillman Valley?
How many hours of daylight does Stillman Valley have in July?
What time are sunrise and sunset in July in Stillman Valley?
What month has the most sunshine in Stillman Valley?
How many hours of sunshine does Stillman Valley have in July?
When is the highest UV index in Stillman Valley?
What is the UV index reading in July in Stillman Valley?
Average temperature in July
Stillman Valley, IL
- Average high temperature in July: 79.9°F
The warmest month (with the highest average high temperature) is July (79.9°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°F).
Average pressure in July
Stillman Valley, 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
Stillman Valley, IL
- Average wind speed in July: 6.5mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in July
Stillman Valley, IL
- Average humidity in July: 85%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in July
Stillman Valley, IL
- Average rainfall in July: 1.02"
The wettest month (with the highest rainfall) is May (1.18").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in July
Stillman Valley, IL
- Average rainfall days in July: 10.8 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in July
Stillman Valley, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Stillman Valley, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (8.1 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
Stillman Valley, 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 42min).
Average sunshine days in July
Stillman Valley, IL
- Average sunshine days in July: 16.3 days
The month with the most sunshine days is December (22.6 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in July
Stillman Valley, IL
- Average UV index in July: 6
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in July
Stillman Valley, IL
- Average cloud cover in July: 35
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in July
Stillman Valley, IL
- Average visibility in July: 5mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Stillman Valley, Illinois, USA
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