July weather forecastPontiac, IL

July

Weather in July

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

Temperature

July, with an average high of 81°F (27.2°C) and a low of 64.6°F (18.1°C), signifies the warmest month of the year.

Heat index

July's average heat index is calculated to be a tropical 87.8°F (31°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.

Humidity

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

Rainfall

In Pontiac, during July, the rain falls for 14.6 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Pontiac, during the entire year, the rain falls for 125.3 days and collects up to 15.71" (399mm) of precipitation.

Snowfall

In Pontiac, snow does not fall in May through September.

Daylight

The average length of the day in July is 14h and 46min.
On the first day of July, sunrise is at 5:26 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:11 pm CDT.

Sunshine

The average sunshine in July is 9.6h.

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 risk from exposure to the Sun's UV radiation for average individuals.
Note: In July, the maximum UV index of 6 suggests these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. 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. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Pontiac's warmest temperatures are experienced in July, with average high temperatures of 81°F (27.2°C) and lows of 64.6°F (18.1°C).

In Pontiac, in July, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 64.6°F (18.1°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

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

In July, the average relative humidity in Pontiac is 85%.

In Pontiac, during July, the rain falls for 14.6 days and regularly aggregates up to 1.81" (46mm) of precipitation.

In Pontiac, snow does not fall in May through September.

In July, the average day length is 14h and 46min.

On the first day of July, sunrise is at 5:26 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:11 pm CDT.

In July, the average sunshine duration is 9.6h.

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

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Pontiac, 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 (30.2°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 (18.5°F).

Average pressure in July
Pontiac, 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 (29.92"Hg).

Average wind speed in July
Pontiac, 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 (6.3mph).

Average humidity in July
Pontiac, 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%).

Average rainfall in July
Pontiac, IL

  • Average rainfall in July: 1.81"

The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").

Average rainfall days in July
Pontiac, IL

  • Average rainfall days in July: 14.6 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in July
Pontiac, IL

  • Average snowfall in July: 0"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Pontiac, IL

  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (10.2 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
Pontiac, IL

  • Average daylight in July: 14h and 48min

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 36min

The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in July
Pontiac, IL

  • Average sunshine days in July: 11.3 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).

Average UV index in July
Pontiac, 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 December (UV index 1).

Average cloud cover in July
Pontiac, IL

  • Average cloud cover in July: 35

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

Average visibility in July
Pontiac, 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).