August weather forecast
Rossiter, PA

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Weather in August

The last month of the summer, August, is another warm month in Rossiter, Pennsylvania, with an average temperature varying between 57°F (13.9°C) and 79.2°F (26.2°C).

Temperature

The arrival of August brings an average high-temperature of a still warm 79.2°F (26.2°C), subtly diverging from July's 81°F (27.2°C). The significant decline in Rossiter's temperature, from day to night, averages of 57°F (13.9°C) in August.

Humidity

June through August, with an average relative humidity of 78%, are the least humid months.

Rainfall

In Rossiter, in August, it is raining for 14.4 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 151.9 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 6:12 am and sunset at 8:31 pm. On the last day of August, sunrise is at 6:42 am and sunset at 7:49 pm EDT.

Sunshine

July and August, with an average of 9.6h of sunshine, are months with the most sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: An average maximum UV index of 5 in August leads to these recommendations:
Take precautions - Protection against sunburn is recommended. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What is the average August temperature?

The high-temperature, in August, in Rossiter, records 79.2°F (26.2°C), while the low-temperature is 57°F (13.9°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is appraised at 86°F (30°C).

What are the least humid months in Rossiter?

June through August, with an average relative humidity of 78%, are the least humid months.

What is the average humidity in August?

The average relative humidity in August in Rossiter is 78%.

How much does it rain in August?

In Rossiter, in August, during 14.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Rossiter have in August?

In Rossiter, the average day length in August is 13h and 46min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 6:12 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 7:49 pm EDT.

What is the month with the most sunshine?

The months with the most sunshine are July and August, with an average of 9.6h of sunshine.

How many hours of sunshine does Rossiter have in August?

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

What are the months with the highest UV index?

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 Rossiter, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Rossiter, PA

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

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in August: 57°F

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in August
Rossiter, PA

Average pressure in August - Rossiter, 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 (29.95"Hg).

Average wind speed in August
Rossiter, PA

Average wind speed in August - Rossiter, PA
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Rossiter, PA

Average humidity in August - Rossiter, PA
  • Average humidity in August: 78%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).

Average rainfall in August
Rossiter, PA

Average rainfall in August - Rossiter, PA
  • Average rainfall in August: 1.46"

The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days in August
Rossiter, PA

Average rainfall days in August - Rossiter, PA
  • Average rainfall days in August: 14.4 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in August
Rossiter, PA

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

The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Rossiter, PA

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

The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Rossiter, 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 4min

The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in August
Rossiter, PA

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

The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in August
Rossiter, PA

Average UV index in August - Rossiter, 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
Rossiter, PA

Average cloud cover in August - Rossiter, PA
  • Average cloud cover in August: 39

The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).

Average visibility in August
Rossiter, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Rossiter, Pennsylvania, USA

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