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 81.5°F (27.5°C) and lows of 64.9°F (18.3°C), July is the warmest month.Heat index
The heat index in July is calculated to be a hot 87.8°F (31°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
With an average relative humidity of 84%, July is the most humid month.Rainfall
In Joy, during July, the rain falls for 13.4 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Joy, there are 121.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In Joy, snow does not fall in May through September.Daylight
The average length of the day in July is 14h and 48min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:40 pm. On the last day of July, in Joy, sunrise is at 5:58 am and sunset at 8:20 pm CDT.
Sunshine
With an average of 10.3h of sunshine, July has the most sunshine of the year in Joy.UV index
June and July, with an average maximum UV index of 6, are months with the highest UV index in Joy, Illinois. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 in July translates into this advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year in Joy?
What are July temperatures in Joy?
What is the most humid month in Joy?
What is the average humidity in July in Joy?
How many days does it rain in July in Joy?
When it does not snow in Joy?
What is the average length of the day in July in Joy?
When is the sunrise / sunset in July in Joy?
What month has the most sunshine in Joy?
How many hours of sunshine does Joy have in July?
When is the highest UV index in Joy?
What is the UV index reading in July in Joy?
Average temperature in July
Joy, IL
- Average high temperature in July: 81.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in July: 64.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in July
Joy, IL
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Joy, IL
- Average wind speed in July: 6.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in July
Joy, IL
- Average humidity in July: 84%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Joy, IL
- Average rainfall in July: 2.13"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in July
Joy, IL
- Average rainfall days in July: 13.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in July
Joy, IL
- Average snowfall in July: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in July
Joy, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (7.8 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
Joy, IL
- Average daylight in July: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in July
Joy, IL
- Average sunshine days in July: 14.9 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in July
Joy, IL
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Joy, IL
- Average cloud cover in July: 30
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in July
Joy, IL
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Joy, Illinois, USA
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