August weather forecast
Crestwood, PA

Share

Weather in August

The last month of the summer, August, is another warm month in Crestwood, Pennsylvania, with an average temperature ranging between min 57.4°F (14.1°C) and max 77.5°F (25.3°C).

Temperature

With the start of August, Crestwood measures an average high-temperature of a still warm 77.5°F (25.3°C), not significantly differing from July's 80.2°F (26.8°C). During the month of August, Crestwood anticipates a mean low-temperature of 57.4°F (14.1°C).

Humidity

The average relative humidity in August is 79%.

Rainfall

In Crestwood, in August, it is raining for 14.8 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 139.9 rainfall days, and 22.28" (566mm) of precipitation is accumulated.

Snowfall

In Crestwood, snow does not fall in June through September.

Daylight

In August, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:28 am and sunset at 7:36 pm EDT.

Sunshine

The average sunshine in August in Crestwood is 9.6h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 5 during August translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

The average high-temperature, in August, in Crestwood, is 77.5°F (25.3°C), while the average low-temperature is 57.4°F (14.1°C).

What is the average humidity in August?

In Crestwood, Pennsylvania, the average relative humidity in August is 79%.

How much does it rain in August?

In Crestwood, in August, it is raining for 14.8 days, with typically 2.36" (60mm) of accumulated precipitation.

When it does not snow?

In Crestwood, snow does not fall in June through September.

What is the average length of the day in August?

In August, the average day length is 13h and 47min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:58 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:36 pm EDT.

How many hours of sunshine does Crestwood have in August?

In August, the average sunshine duration in Crestwood is 9.6h.

When is the highest UV index in Crestwood?

The months with the highest UV index are May through August, with an average maximum UV index of 5.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium 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 August
Crestwood, PA

Average temperature in August - Crestwood, PA
  • Average high temperature in August: 77.5°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 57.4°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in August
Crestwood, PA

Average pressure in August - Crestwood, PA
  • Average pressure in August: 30"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Crestwood, PA

Average wind speed in August - Crestwood, PA
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in August
Crestwood, PA

Average humidity in August - Crestwood, PA
  • Average humidity in August: 79%

The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in August
Crestwood, PA

Average rainfall in August - Crestwood, PA
  • Average rainfall in August: 2.36"

The wettest months (with the highest rainfall) are May and July (2.4").
The driest months (with the least rainfall) are January and September (1.38").

Average rainfall days in August
Crestwood, PA

Average rainfall days in August - Crestwood, PA
  • Average rainfall days in August: 14.8 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in August
Crestwood, PA

Average snowfall in August - Crestwood, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Crestwood, PA

Average snowfall days in August - Crestwood, PA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Crestwood, PA

Average daylight in August / Average sunshine in August - Crestwood, PA
  • Average daylight in August: 13h and 5min

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 12min).

  • Average sunshine in August: 9h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).

Average sunshine days in August
Crestwood, PA

Average sunshine days in August - Crestwood, PA
  • Average sunshine days in August: 14.6 days

The month with the most sunshine days is January (18.4 days).
The month with the least sunshine days is May (11 days).

Average UV index in August
Crestwood, PA

Average UV index in August - Crestwood, PA
  • Average UV index in August: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in August
Crestwood, PA

Average cloud cover in August - Crestwood, PA
  • Average cloud cover in August: 40

The months with the most cloud cover are February and December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in August
Crestwood, PA

Average visibility in August - Crestwood, PA
  • Average visibility in August: 5mi

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

Crestwood, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location