August weather forecastSunbury, PA
August
Weather in August
August, the last month of the summer in Sunbury, is also a moderately hot month, with an average temperature ranging between min 59.4°F (15.2°C) and max 80.2°F (26.8°C).Temperature
August records an average high-temperature of a still moderately hot 80.2°F (26.8°C), indicating a minor variation from the preceding month. During the nights in August, Sunbury experiences a consistent average temperature of 59.4°F (15.2°C).Humidity
In Sunbury, the average relative humidity in August is 79%.Rainfall
In Sunbury, in August, during 12.3 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Sunbury, Pennsylvania, during the entire year, the rain falls for 133.4 days and collects up to 13.15" (334mm) of precipitation.Snowfall
In Sunbury, snow does not fall in June through October.Daylight
The average length of the day in August is 13h and 45min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:22 pm. On the last day of August, sunrise is at 6:33 am and sunset at 7:40 pm EDT.
Sunshine
The average sunshine in August is 10.1h.UV index
The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 5 transforms into these recommendations:
Take necessary precautions - Defending against sun damage is advocated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Sunbury, PA
- Average high temperature in August: 80.2°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in August: 59.4°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in August
Sunbury, 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 (29.94"Hg).
Average wind speed in August
Sunbury, PA
- Average wind speed in August: 4.6mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in August
Sunbury, PA
- Average humidity in August: 79%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in August
Sunbury, PA
- Average rainfall in August: 1.14"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in August
Sunbury, PA
- Average rainfall days in August: 12.3 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in August
Sunbury, PA
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Sunbury, PA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Sunbury, 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 18min).
- Average sunshine in August: 10h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in August
Sunbury, PA
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in August
Sunbury, PA
- Average UV index in August: 5
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 August
Sunbury, PA
- Average cloud cover in August: 33
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in August
Sunbury, PA
- Average visibility in August: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).





