July weather forecast
New Grand Chain, IL

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Weather in July

July in New Grand Chain, Illinois, is a tropical summer month, with temperature in the range of an average high of 88°F (31.1°C) and an average low of 68.5°F (20.3°C).

Temperature

In New Grand Chain, the highest average temperatures are observed in July, with a high of 88°F (31.1°C) and a low of 68.5°F (20.3°C).

Heat index

For July, the heat index is evaluated at a blisteringly hot 104°F (40°C). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In New Grand Chain, the average relative humidity in July is 76%.

Rainfall

In New Grand Chain, in July, during 13.1 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In New Grand Chain, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in July is 14h and 26min.
On the first day of July in New Grand Chain, sunrise is at 5:39 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:04 pm CDT.

Sunshine

The months with the most sunshine are June and July, with an average of 10.4h of sunshine.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 6 in July translates into the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. 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 hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

July, with its high-temperature average of 88°F (31.1°C) and a low-temperature average of 68.5°F (20.3°C), is the warmest month.

How hot is July?

The high-temperature during July is 88°F (31.1°C) and the low-temperature is 68.5°F (20.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in July is evaluated at 104°F (40°C).

What is the average humidity in July?

In New Grand Chain, the average relative humidity in July is 76%.

How many days does it rain in July?

In New Grand Chain, during July, the rain falls for 13.1 days and regularly aggregates up to 1.42" (36mm) of precipitation.

When it does not snow in New Grand Chain?

In New Grand Chain, snow does not fall in April through October.

What is the average length of the day in July?

The average day length in July is 14h and 26min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:39 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:04 pm CDT.

What are the months with the most sunshine?

The months with the most sunshine in New Grand Chain are June and July, with an average of 10.4h of sunshine.

How many hours of sunshine does New Grand Chain have in July?

In New Grand Chain, the average sunshine duration in July is 10.4h.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in July?

In New Grand Chain, Illinois, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
New Grand Chain, IL

Average temperature in July - New 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
New Grand Chain, IL

Average pressure in July - New 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
New Grand Chain, IL

Average wind speed in July - New 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
New Grand Chain, IL

Average humidity in July - New 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
New Grand Chain, IL

Average rainfall in July - New 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
New Grand Chain, IL

Average rainfall days in July - New 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
New Grand Chain, IL

Average snowfall in July - New 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
New Grand Chain, IL

Average snowfall days in July - New 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
New Grand Chain, IL

Average daylight in July / Average sunshine in July - New 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
New Grand Chain, IL

Average sunshine days in July - New 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
New Grand Chain, IL

Average UV index in July - New 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
New Grand Chain, IL

Average cloud cover in July - New 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
New Grand Chain, IL

Average visibility in July - New 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).

New Grand Chain, Illinois, USA

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