August weather forecastSterling, PA
August
Weather in August
The last month of the summer, August, is another warm month in Sterling, Pennsylvania, with an average temperature varying between 57.7°F (14.3°C) and 78.3°F (25.7°C).Temperature
August's weather records an average high-temperature of a still warm 78.3°F (25.7°C), showing little deviation from July. The average temperature drops to a refreshing 57.7°F (14.3°C) during the night in the month of August.Humidity
In August, the average relative humidity is 79%.Rainfall
In Sterling, in August, it is raining for 15.3 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 154.8 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
In Sterling, Pennsylvania, snow does not fall in June through September.Daylight
In Sterling, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:57 am and sunset at 8:18 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:35 pm EDT.
Sunshine
In Sterling, the average sunshine in August is 9.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, a daily maximum UV index of 5 leads to the following instructions:
Adopt protective measures - It is advised to guard against sun damage. It's recommended to limit sun exposure when its radiation is at its peak during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sterling, PA
- Average high temperature in August: 78.3°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in August: 57.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in August
Sterling, PA
- Average pressure in August: 29.99"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
Sterling, PA
- Average wind speed in August: 5.4mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Sterling, PA
- Average humidity in August: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in August
Sterling, PA
- Average rainfall in August: 2.91"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in August
Sterling, PA
- Average rainfall days in August: 15.3 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in August
Sterling, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Sterling, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sterling, PA
- Average daylight in August: 13h and 48min
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 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in August
Sterling, PA
- Average sunshine days in August: 13.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in August
Sterling, PA
- Average UV index in August: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Sterling, PA
- Average cloud cover in August: 39
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in August
Sterling, 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).





