July weather forecast
McNabb, IL

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Weather in July

July, the same as June, is a moderately hot summer month in McNabb, Illinois, with an average temperature fluctuating between 64.6°F (18.1°C) and 81°F (27.2°C).

Temperature

With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.6°F (18.1°C), July is the warmest month.

Heat index

The heat index in July is calculated to be a tropical 87.8°F (31°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

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

Rainfall

In July, the rain falls for 17.3 days. Throughout July, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 151.3 rainfall days, and 30.16" (766mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In McNabb, the average length of the day in July is 14h and 48min.
On the first day of the month, sunrise is at 5:28 am and sunset at 8:33 pm. On the last day of July, sunrise is at 5:52 am and sunset at 8:14 pm CDT.

Sunshine

The average sunshine in July is 9.8h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in July transforms into the following instructions:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the hottest?

July is the warmest month, with the temperature often reaching an average high of 81°F (27.2°C) and an average low of 64.6°F (18.1°C).

What are the temperatures in July?

The high-temperature, in July, in McNabb, records 81°F (27.2°C), while the low-temperature is 64.6°F (18.1°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the most humid month?

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

What is the average humidity in July?

In July, the average relative humidity is 85%.

How many days does it rain in July in McNabb?

In McNabb, in July, during 17.3 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

How many hours of daylight does McNabb have in July?

In McNabb, the average day length in July is 14h and 48min.

What time are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:28 am and sunset at 8:33 pm. On the last day of the month, in McNabb, sunrise is at 5:52 am and sunset at 8:14 pm CDT.

How long on average sun shines in July?

In July, the average sunshine duration is 9.8h.

When is the highest UV index?

The months with the highest UV index in McNabb are June and July, with an average maximum UV index of 6.

What is the UV index intensity in July?

In McNabb, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
McNabb, IL

Average temperature in July - McNabb, 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 (29.3°F).

  • Average low temperature in July: 64.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in July
McNabb, IL

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in July
McNabb, IL

Average wind speed in July - McNabb, IL
  • Average wind speed in July: 6.6mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in July
McNabb, IL

Average humidity in July - McNabb, 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 (72%).

Average rainfall in July
McNabb, IL

Average rainfall in July - McNabb, IL
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are January and December (1.57").

Average rainfall days in July
McNabb, IL

Average rainfall days in July - McNabb, IL
  • Average rainfall days in July: 17.3 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in July
McNabb, IL

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

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
McNabb, IL

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

The month with the highest number of snowfall days is January (11.2 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
McNabb, IL

Average daylight in July / Average sunshine in July - McNabb, 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: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in July
McNabb, IL

Average sunshine days in July - McNabb, IL
  • Average sunshine days in July: 11 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in July
McNabb, IL

Average UV index in July - McNabb, 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
McNabb, IL

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

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in July
McNabb, IL

Average visibility in July - McNabb, IL
  • Average visibility in July: 5mi

The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).

McNabb, Illinois, USA

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