August weather forecast
McKees Rocks, PA

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Weather in August

The last month of the summer, August, is also a moderately hot month in McKees Rocks, Pennsylvania, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 61.3°F (16.3°C).

Temperature

The average high-temperature is a still moderately hot 82.2°F (27.9°C) in August, hardly different from the 84°F (28.9°C) recorded in July. During the month of August, McKees Rocks experiences a steady low-temperature average of 61.3°F (16.3°C).

Heat index

August's mean heat index is evaluated at a tropical 87.8°F (31°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

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

Rainfall

In McKees Rocks, in August, during 16 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In McKees Rocks, during the entire year, the rain falls for 163.6 days and collects up to 26.93" (684mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 44min.
On the first day of August, sunrise is at 6:18 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:53 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.1h of sunshine.

UV index

In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during August morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures in McKees Rocks?

An average high-temperature, in August, in McKees Rocks, is 82.2°F (27.9°C) and the average low-temperature is 61.3°F (16.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 87.8°F (31°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 August?

In McKees Rocks, the average relative humidity in August is 73%.

How much does it rain in August?

In McKees Rocks, in August, during 16 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

When it does not snow?

In McKees Rocks, snow does not fall in May through September.

What is the average length of the day in August?

In McKees Rocks, the average day length in August is 13h and 44min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 6:18 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:53 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.1h of sunshine.

How long on average sun shines in August?

In August, the average sunshine duration is 10.1h.

How high is the UV index in August?

In August, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe 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 August
McKees Rocks, PA

Average temperature in August - McKees Rocks, PA
  • Average high temperature in August: 82.2°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 August: 61.3°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 August
McKees Rocks, PA

Average pressure in August - McKees Rocks, PA
  • Average pressure in August: 30"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 August
McKees Rocks, PA

Average wind speed in August - McKees Rocks, PA
  • Average wind speed in August: 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 August
McKees Rocks, PA

Average humidity in August - McKees Rocks, PA
  • Average humidity in August: 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 August
McKees Rocks, PA

Average rainfall in August - McKees Rocks, PA
  • Average rainfall in August: 2.05"

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 August
McKees Rocks, PA

Average rainfall days in August - McKees Rocks, PA
  • Average rainfall days in August: 16 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 August
McKees Rocks, PA

Average snowfall in August - McKees Rocks, PA
  • Average snowfall in August: 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 August
McKees Rocks, PA

Average snowfall days in August - McKees Rocks, PA
  • Average snowfall days in August: 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 August /
Average sunshine in August
McKees Rocks, PA

Average daylight in August / Average sunshine in August - McKees Rocks, PA
  • Average daylight in August: 13h 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 August: 10h and 1min

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 August
McKees Rocks, PA

Average sunshine days in August - McKees Rocks, PA
  • Average sunshine days in August: 13.4 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 August
McKees Rocks, PA

Average UV index in August - McKees Rocks, PA
  • Average UV index in August: 5

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 August
McKees Rocks, PA

Average cloud cover in August - McKees Rocks, PA
  • Average cloud cover in August: 34

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 August
McKees Rocks, PA

Average visibility in August - McKees Rocks, PA
  • Average visibility in August: 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).

McKees Rocks, Pennsylvania, USA

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