July weather forecastJeisyville, IL
July
Weather in July
July, the same as June, is another warm summer month in Jeisyville, Illinois, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 66.4°F (19.1°C).Temperature
During the warmest month, July, temperatures average a high of 82.8°F (28.2°C) and a low of 66.4°F (19.1°C).Heat index
In July, the heat index is calculated to be a hot 91.4°F (33°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
The most humid month is July, with an average relative humidity of 83%.Rainfall
In Jeisyville, in July, during 10.6 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 96.7 rainfall days, and 7.64" (194mm) of precipitation is accumulated.Snowfall
In Jeisyville, snow does not fall in April through October.Daylight
In Jeisyville, the average length of the day in July is 14h and 38min.On the first day of July, sunrise is at 5:34 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:11 pm CDT.
Sunshine
In July, the average sunshine is 10.1h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In July, a regular UV index of 6 translates into these guidelines:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Jeisyville, IL
- Average high temperature in July: 82.8°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in July: 66.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in July
Jeisyville, IL
- Average pressure in July: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in July
Jeisyville, IL
- Average wind speed in July: 6.1mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in July
Jeisyville, IL
- Average humidity in July: 83%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in July
Jeisyville, IL
- Average rainfall in July: 0.75"
The wettest month (with the highest rainfall) is April (0.94").
The driest months (with the least rainfall) are September and December (0.39").
Average rainfall days in July
Jeisyville, IL
- Average rainfall days in July: 10.6 days
The month with the highest number of rainy days is May (11.5 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in July
Jeisyville, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Jeisyville, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (5.9 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
Jeisyville, IL
- Average daylight in July: 14h and 36min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 10h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in July
Jeisyville, IL
- Average sunshine days in July: 16.8 days
The month with the most sunshine days is November (22.6 days).
The months with the least sunshine days are May and June (16.5 days).
Average UV index in July
Jeisyville, IL
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Jeisyville, IL
- Average cloud cover in July: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in July
Jeisyville, 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).





