August weather forecast
South Williamsport, PA

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Weather in August

The last month of the summer, August, is also a moderately hot month in South Williamsport, Pennsylvania, with an average temperature fluctuating between 57.2°F (14°C) and 79.2°F (26.2°C).

Temperature

The transition into August marks the average high-temperature at a still moderately hot 79.2°F (26.2°C), differing minimally from July's 81.7°F (27.6°C). South Williamsport anticipates a considerable drop in temperature at night in August, with an average low of 57.2°F (14°C).

Humidity

The average relative humidity in August in South Williamsport is 79%.

Rainfall

In South Williamsport, in August, it is raining for 14 days, with typically 1.5" (38mm) of accumulated precipitation. In South Williamsport, during the entire year, the rain falls for 145.2 days and collects up to 16.57" (421mm) of precipitation.

Snowfall

In South Williamsport, snow does not fall in May 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 6:04 am and sunset at 8:24 pm. On the last day of August, in South Williamsport, sunrise is at 6:34 am and sunset at 7:41 pm EDT.

Sunshine

The average sunshine in August in South Williamsport is 9.8h.

UV index

In South Williamsport, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily high UV index of 5 in August translates into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the temperature in August in South Williamsport?

The average high-temperature and low-temperature in South Williamsport during August are 79.2°F (26.2°C) and 57.2°F (14°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in August in South Williamsport?

The average relative humidity in August in South Williamsport, Pennsylvania, is 79%.

How many days does it rain in August in South Williamsport?

In August, the rain falls for 14 days. Throughout August, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in South Williamsport?

May through September are months without snowfall in South Williamsport.

How many hours of daylight does South Williamsport have in August?

The average day length in August is 13h and 47min.

What time are sunrise and sunset in August in South Williamsport?

In August, on the first day of the month, sunrise is at 6:04 am and sunset at 8:24 pm. On the last day of the month, in South Williamsport, sunrise is at 6:34 am and sunset at 7:41 pm EDT.

How long on average sun shines in August in South Williamsport?

The average sunshine duration in August in South Williamsport is 9.8h.

What is the UV index intensity in August in South Williamsport?

In South Williamsport, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
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
South Williamsport, PA

Average temperature in August - South Williamsport, PA
  • Average high temperature in August: 79.2°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in August: 57.2°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in August
South Williamsport, PA

Average pressure in August - South Williamsport, 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).

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Average wind speed in August
South Williamsport, PA

Average wind speed in August - South Williamsport, PA
  • Average wind speed in August: 4.8mph

The windiest months (with the highest average wind speed) are January, March and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in August
South Williamsport, PA

Average humidity in August - South Williamsport, PA
  • Average humidity in August: 79%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (77%).

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Average rainfall in August
South Williamsport, PA

Average rainfall in August - South Williamsport, PA
  • Average rainfall in August: 1.5"

The wettest month (with the highest rainfall) is April (1.93").
The driest month (with the least rainfall) is November (0.94").

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Average rainfall days in August
South Williamsport, PA

Average rainfall days in August - South Williamsport, PA
  • Average rainfall days in August: 14 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (7.5 days).

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Average snowfall in August
South Williamsport, PA

Average snowfall in August - South Williamsport, PA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
South Williamsport, PA

Average snowfall days in August - South Williamsport, PA
  • Average snowfall days in August: 0 days

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

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Average daylight in August /
Average sunshine in August
South Williamsport, PA

Average daylight in August / Average sunshine in August - South Williamsport, 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 18min).

  • Average sunshine in August: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

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Average sunshine days in August
South Williamsport, PA

Average sunshine days in August - South Williamsport, PA
  • Average sunshine days in August: 14.8 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in August
South Williamsport, PA

Average UV index in August - South Williamsport, 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, October, November and December (UV index 2).

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Average cloud cover in August
South Williamsport, PA

Average cloud cover in August - South Williamsport, PA
  • Average cloud cover in August: 37

The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 35).

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Average visibility in August
South Williamsport, PA

Average visibility in August - South Williamsport, PA
  • Average visibility in August: 5mi

The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).

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South Williamsport, Pennsylvania, USA

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