July weather forecast
Southwest, PA

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Weather in July

July, the same as June, is another warm summer month in Southwest, Pennsylvania, with an average temperature fluctuating between 82°F (27.8°C) and 60.4°F (15.8°C).

Temperature

July, noted for its average high-temperature of 82°F (27.8°C) and an average low-temperature of 60.4°F (15.8°C), is considered the warmest month.

Heat index

The heat index in July is computed to be a tropical 87.8°F (31°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

April, July and August, with an average relative humidity of 77%, are the least humid months in Southwest.

Rainfall

In Southwest, Pennsylvania, in July, it is raining for 19.1 days, with typically 3.07" (78mm) of accumulated precipitation. In Southwest, during the entire year, the rain falls for 185.4 days and collects up to 34.02" (864mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In July, the average length of the day is 14h and 42min.
On the first day of July, sunrise is at 5:52 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:33 pm EDT.

Sunshine

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

UV index

With an average maximum UV index of 6, July is the month with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In July, a regular UV index of 6 translates into these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the hottest in Southwest?

In Southwest, July is the month with the highest recorded average temperatures, measuring a high of 82°F (27.8°C) and a low of 60.4°F (15.8°C).

What are the temperatures in July?

In July, in Southwest, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 60.4°F (15.8°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What are the least humid months?

April, July and August, with an average relative humidity of 77%, are the least humid months.

What is the average humidity in July in Southwest?

The average relative humidity in July is 77%.

How many days does it rain in July?

In Southwest, in July, during 19.1 rainfall days, 3.07" (78mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

What is the average length of the day in July?

In July, the average day length is 14h and 42min.

When is the sunrise / sunset in July?

In July, on the first day of the month, sunrise is at 5:52 am and sunset at 8:51 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:33 pm EDT.

How long on average sun shines in July in Southwest?

In July, the average sunshine duration is 9.9h.

When is the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the UV index reading in July?

The average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Southwest, PA

Average temperature in July - Southwest, PA
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).

  • Average low temperature in July: 60.4°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in July
Southwest, PA

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in July
Southwest, PA

Average wind speed in July - Southwest, PA
  • Average wind speed in July: 5mph

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

Average humidity in July
Southwest, PA

Average humidity in July - Southwest, PA
  • Average humidity in July: 77%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in July
Southwest, PA

Average rainfall in July - Southwest, PA
  • Average rainfall in July: 3.07"

The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in July
Southwest, PA

Average rainfall days in July - Southwest, PA
  • Average rainfall days in July: 19.1 days

The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in July
Southwest, PA

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

The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Southwest, PA

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

The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Southwest, PA

Average daylight in July / Average sunshine in July - Southwest, 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 24min).

  • Average sunshine in July: 9h and 5min

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

Average sunshine days in July
Southwest, PA

Average sunshine days in July - Southwest, PA
  • Average sunshine days in July: 10.3 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).

Average UV index in July
Southwest, PA

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

The month with the highest UV index is 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
Southwest, PA

Average cloud cover in July - Southwest, PA
  • Average cloud cover in July: 37

The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in July
Southwest, PA

Average visibility in July - Southwest, PA
  • Average visibility in July: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Southwest, Pennsylvania, USA

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