August weather forecastSlate Run, PA
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Slate Run, Pennsylvania, with an average temperature varying between 77.7°F (25.4°C) and 55°F (12.8°C).Temperature
As August unfolds, the average high-temperature reaches a still warm 77.7°F (25.4°C), hinting at a slight fluctuation from the previous month. Slate Run reports a steady low-temperature average of 55°F (12.8°C) throughout August, revealing a large deviation from the daytime high.Humidity
In Slate Run, the average relative humidity in August is 79%.Rainfall
In August, the rain falls for 16.5 days. Throughout August, 2.48" (63mm) of precipitation is accumulated. In Slate Run, during the entire year, the rain falls for 168.8 days and collects up to 32.56" (827mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:27 pm. On the last day of August, sunrise is at 6:35 am and sunset at 7:44 pm EDT.
Sunshine
In Slate Run, the average sunshine in August is 9.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 5 in August translates into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Slate Run, PA
- Average high temperature in August: 77.7°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in August: 55°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in August
Slate Run, PA
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in August
Slate Run, PA
- Average wind speed in August: 5.2mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in August
Slate Run, PA
- Average humidity in August: 79%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (77%).
Average rainfall in August
Slate Run, PA
- Average rainfall in August: 2.48"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in August
Slate Run, PA
- Average rainfall days in August: 16.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in August
Slate Run, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (9.84").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Slate Run, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Slate Run, 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 24min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 0min).
Average sunshine days in August
Slate Run, PA
- Average sunshine days in August: 11.9 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in August
Slate Run, 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
Slate Run, PA
- Average cloud cover in August: 42
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in August
Slate Run, PA
- Average visibility in August: 4mi
The months with the highest visibility are March, April, May, June, July and November (5mi).
The months with the lowest visibility are January, February, August, September, October and December (4mi).





