July weather forecast
Pittsburgh, PA

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A beautiful dusk panorama of Pittsburgh, Pennsylvania, with the river and several bridges
A beautiful dusk panorama of Pittsburgh, Pennsylvania, with the river and several bridges

Weather in July

July is the peak of summer in Pittsburgh, demonstrating the season's most intense conditions. With a remarkable high temperature of 84°F (28.9°C), it is undeniably the hottest month of the year. Despite the heat, it's a fantastic time to partake in water-related activities, or simply relax in the numerous city parks. Being the season's zenith, also means occasional thunderstorms, due to the intense heat and humidity. Still, it's an opportune time for locals and tourists to enjoy summer activities in all their glory.

Temperature

July is the month when Pittsburgh sees the highest average temperatures, with a high of 84°F (28.9°C) and a low of 63°F (17.2°C).

Heat index

The heat index value during July is evaluated at a tropical 91.4°F (33°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. 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.

Humidity

July and August, with an average relative humidity of 73%, are the least humid months.

Rainfall

In July, the rain falls for 18.2 days. Throughout July, 2.76" (70mm) of precipitation is accumulated. In Pittsburgh, during the entire year, the rain falls for 163.6 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

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

Daylight

In July, the average length of the day is 14h and 43min.
On the first day of July, sunrise is at 5:53 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:35 pm EDT.

Sunshine

In July, the average sunshine is 9.8h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In July, the UV index of 6 transforms into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the warmest month?

Pittsburgh's July weather, with an average high temperature of 84°F (28.9°C) and an average low temperature of 63°F (17.2°C), tends to be the warmest of the year.

How hot is it in July?

In July, the average high-temperature and low-temperature in Pittsburgh are 84°F (28.9°C) and 63°F (17.2°C) respectively. In July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 91.4°F (33°C).

What is the least humid month?

The months with the lowest humidity are July and August, with an average relative humidity of 73%.

What is the average humidity in July?

The average relative humidity in July is 73%.

How many days does it rain in July?

In Pittsburgh, in July, it is raining for 18.2 days, with typically 2.76" (70mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in July?

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

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:53 am and sunset at 8:54 pm. On the last day of the month, in Pittsburgh, sunrise is at 6:17 am and sunset at 8:35 pm EDT.

How long on average sun shines in July in Pittsburgh?

In July, the average sunshine duration is 9.8h.

What are the months with the highest UV index?

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

What is the UV index intensity in July?

In July, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents 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
Pittsburgh, PA

Average temperature in July - Pittsburgh, PA
  • Average high temperature in July: 84°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in July: 63°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average pressure in July
Pittsburgh, PA

Average pressure in July - Pittsburgh, PA
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in July
Pittsburgh, PA

Average wind speed in July - Pittsburgh, PA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

Average humidity in July
Pittsburgh, PA

Average humidity in July - Pittsburgh, PA
  • Average humidity in July: 73%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (73%).

Average rainfall in July
Pittsburgh, PA

Average rainfall in July - Pittsburgh, PA
  • Average rainfall in July: 2.76"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.54").

Average rainfall days in July
Pittsburgh, PA

Average rainfall days in July - Pittsburgh, PA
  • Average rainfall days in July: 18.2 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (8.9 days).

Average snowfall in July
Pittsburgh, PA

Average snowfall in July - Pittsburgh, PA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Pittsburgh, PA

Average snowfall days in July - Pittsburgh, PA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (14.4 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
Pittsburgh, PA

Average daylight in July / Average sunshine in July - Pittsburgh, PA
  • 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 18min).

  • Average sunshine in July: 9h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in July
Pittsburgh, PA

Average sunshine days in July - Pittsburgh, PA
  • Average sunshine days in July: 11.1 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (9.6 days).

Average UV index in July
Pittsburgh, PA

Average UV index in July - Pittsburgh, PA
  • Average UV index in July: 6

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in July
Pittsburgh, PA

Average cloud cover in July - Pittsburgh, PA
  • Average cloud cover in July: 36

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in July
Pittsburgh, PA

Average visibility in July - Pittsburgh, PA
  • Average visibility in July: 6mi

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

Pittsburgh, Pennsylvania, USA

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