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
The average temperatures reach their apex in July, averaging 88°F (31.1°C) at the high end and 68.5°F (20.3°C) at the low end.Heat index
For most parts of July, the heat index is evaluated at a blistering 104°F (40°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In July, the average relative humidity is 76%.Rainfall
In Grand Chain, in July, it is raining for 13.1 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Grand Chain, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
In Grand Chain, snow does not fall in April through October.Daylight
In July, the average length of the day in Grand Chain is 14h and 26min.On the first day of the month, sunrise is at 5:39 am and sunset at 8:20 pm. On the last day of July, sunrise is at 6:00 am and sunset at 8:04 pm CDT.
Sunshine
June and July, with an average of 10.4h of sunshine, are months with the most sunshine in Grand Chain.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in July leads to these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What part of the year is the hottest in Grand Chain?
How hot is July in Grand Chain?
What is the average humidity in July in Grand Chain?
How much does it rain in Grand Chain in July?
When it does not snow in Grand Chain?
How many hours of daylight does Grand Chain have in July?
When are sunrise and sunset in July in Grand Chain?
What is the month with the most sunshine in Grand Chain?
How long on average sun shines in July in Grand Chain?
What is the month with the highest UV index in Grand Chain?
What is the UV index intensity in July in Grand Chain?
Average temperature in July
Grand Chain, IL
- Average high temperature in July: 88°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in July
Grand Chain, IL
- Average pressure in July: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Grand Chain, IL
- Average wind speed in July: 5.7mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in July
Grand Chain, IL
- Average humidity in July: 76%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Grand Chain, IL
- Average rainfall in July: 1.42"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in July
Grand Chain, IL
- Average rainfall days in July: 13.1 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in July
Grand Chain, IL
- Average snowfall in July: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in July
Grand Chain, IL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (3.3 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
Grand Chain, IL
- Average daylight in July: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in July: 10h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in July
Grand Chain, IL
- Average sunshine days in July: 15.1 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in July
Grand Chain, IL
- Average UV index in July: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in July
Grand Chain, IL
- Average cloud cover in July: 30
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in July
Grand Chain, IL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand Chain, Illinois, USA
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