July weather forecast
Rantoul, IL

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Weather in July

July, the same as June, is a moderately hot summer month in Rantoul, Illinois, with an average temperature varying between 64.8°F (18.2°C) and 81°F (27.2°C).

Temperature

The warmest period is July, when temperatures fluctuate between an average high of 81°F (27.2°C) and a low of 64.8°F (18.2°C).

Heat index

July's heat index is calculated to be a hot 87.8°F (31°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

With an average relative humidity of 85%, July is the most humid month.

Rainfall

In Rantoul, during July, the rain falls for 13.9 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Rantoul, during the entire year, the rain falls for 121.5 days and collects up to 13.46" (342mm) of precipitation.

Snowfall

In Rantoul, snow does not fall in May through October.

Daylight

In July, the average length of the day is 14h and 43min.
On the first day of the month, sunrise is at 5:26 am and sunset at 8:26 pm. On the last day of July, sunrise is at 5:50 am and sunset at 8:07 pm CDT.

Sunshine

In July, the average sunshine in Rantoul is 9.9h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In July, a daily UV index of 6 turns into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What part of the year is the hottest in Rantoul?

With average high and low temperatures of 81°F (27.2°C) and 64.8°F (18.2°C) respectively, July is Rantoul's warmest month.

What is the usual temperature for Rantoul in July?

The average high-temperature and low-temperature in Rantoul during July are 81°F (27.2°C) and 64.8°F (18.2°C) respectively. In July, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the most humid month in Rantoul?

The most humid month is July, with an average relative humidity of 85%.

What is the average humidity in July in Rantoul?

The average relative humidity in July is 85%.

How many days does it rain in July in Rantoul?

In July, the rain falls for 13.9 days. Throughout July, 1.38" (35mm) of precipitation is accumulated.

When it does not snow in Rantoul?

May through October are months without snowfall in Rantoul, Illinois.

What is the average length of the day in July in Rantoul?

In Rantoul, the average day length in July is 14h and 43min.

When are sunrise and sunset in July in Rantoul?

In July, on the first day of the month, sunrise is at 5:26 am and sunset at 8:26 pm. On the last day of the month, in Rantoul, Illinois, sunrise is at 5:50 am and sunset at 8:07 pm CDT.

How long on average sun shines in July in Rantoul?

The average sunshine duration in July is 9.9h.

When is the highest UV index in Rantoul?

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

What is the UV index reading in July in Rantoul?

In July, the average daily maximum UV index in Rantoul, Illinois, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
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
Rantoul, IL

Average temperature in July - Rantoul, IL
  • Average high temperature in July: 81°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in July
Rantoul, IL

Average pressure in July - Rantoul, IL
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in July
Rantoul, IL

Average wind speed in July - Rantoul, IL
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in July
Rantoul, IL

Average humidity in July - Rantoul, IL
  • Average humidity in July: 85%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in July
Rantoul, IL

Average rainfall in July - Rantoul, IL
  • Average rainfall in July: 1.38"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is February (0.67").

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Average rainfall days in July
Rantoul, IL

Average rainfall days in July - Rantoul, IL
  • Average rainfall days in July: 13.9 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in July
Rantoul, IL

Average snowfall in July - Rantoul, IL
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Rantoul, IL

Average snowfall days in July - Rantoul, IL
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Rantoul, IL

Average daylight in July / Average sunshine in July - Rantoul, IL
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in July
Rantoul, IL

Average sunshine days in July - Rantoul, IL
  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in July
Rantoul, IL

Average UV index in July - Rantoul, 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).

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Average cloud cover in July
Rantoul, IL

Average cloud cover in July - Rantoul, IL
  • Average cloud cover in July: 33

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).

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Average visibility in July
Rantoul, IL

Average visibility in July - Rantoul, 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).

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Rantoul, Illinois, USA

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