July weather forecast
Glen Carbon, PA

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Weather in July

July, the same as June, is a moderately hot summer month in Glen Carbon, Pennsylvania, with an average temperature ranging between min 61.7°F (16.5°C) and max 81.3°F (27.4°C).

Temperature

Glen Carbon's July weather reaches an average high of 81.3°F (27.4°C) and an average low of 61.7°F (16.5°C), making it the warmest month.

Heat index

During July, the heat index is computed to be a hot 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in July is 79%.

Rainfall

In Glen Carbon, in July, during 16.9 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. In Glen Carbon, during the entire year, the rain falls for 146 days and collects up to 26.42" (671mm) of precipitation.

Snowfall

In Glen Carbon, snow does not fall in June through September.

Daylight

The average length of the day in July is 14h and 45min.
On the first day of July in Glen Carbon, sunrise is at 5:38 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:21 pm EDT.

Sunshine

July has the most sunshine of the year, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during July translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest?

July is the month that records the highest temperatures, with averages ranging from a high of 81.3°F (27.4°C) to a low of 61.7°F (16.5°C).

What are July temperatures?

The average high-temperature, in July, in Glen Carbon, is 81.3°F (27.4°C), while the average low-temperature is 61.7°F (16.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in July?

The average relative humidity in July is 79%.

How many days does it rain in July?

In July, in Glen Carbon, the rain falls for 16.9 days. Throughout July, 2.83" (72mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

The average day length in July in Glen Carbon is 14h and 45min.

What time are sunrise and sunset in July in Glen Carbon?

On the first day of July, sunrise is at 5:38 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:21 pm EDT.

What month has the most sunshine?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

How many hours of sunshine does Glen Carbon have in July?

In Glen Carbon, the average sunshine duration in July is 10.5h.

When is the highest UV index in Glen Carbon?

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

What is the UV index reading in July?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to 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
Glen Carbon, PA

Average temperature in July - Glen Carbon, PA
  • Average high temperature in July: 81.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in July: 61.7°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in July
Glen Carbon, PA

Average pressure in July - Glen Carbon, PA
  • Average pressure in July: 29.97"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Glen Carbon, PA

Average wind speed in July - Glen Carbon, PA
  • Average wind speed in July: 4.9mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in July
Glen Carbon, PA

Average humidity in July - Glen Carbon, PA
  • Average humidity in July: 79%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (77%).

Average rainfall in July
Glen Carbon, PA

Average rainfall in July - Glen Carbon, PA
  • Average rainfall in July: 2.83"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in July
Glen Carbon, PA

Average rainfall days in July - Glen Carbon, PA
  • Average rainfall days in July: 16.9 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (5.7 days).

Average snowfall in July
Glen Carbon, PA

Average snowfall in July - Glen Carbon, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Glen Carbon, PA

Average snowfall days in July - Glen Carbon, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Glen Carbon, PA

Average daylight in July / Average sunshine in July - Glen Carbon, PA
  • Average daylight in July: 14h and 5min

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 18min).

  • Average sunshine in July: 10h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 24min).

Average sunshine days in July
Glen Carbon, PA

Average sunshine days in July - Glen Carbon, PA
  • Average sunshine days in July: 11.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in July
Glen Carbon, PA

Average UV index in July - Glen Carbon, PA
  • Average UV index in July: 6

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in July
Glen Carbon, PA

Average cloud cover in July - Glen Carbon, PA
  • Average cloud cover in July: 32

The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in July
Glen Carbon, PA

Average visibility in July - Glen Carbon, PA
  • Average visibility in July: 5mi

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

Glen Carbon, Pennsylvania, USA

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