September weather forecast
Roulette, PA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Roulette, Pennsylvania, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 70°F (21.1°C).

Temperature

September brings a slight decrease in temperature, down from a moderately hot 76.6°F (24.8°C) in August to a pleasant 70°F (21.1°C). In the month of September, an average of 49.5°F (9.7°C) marks the low-temperature.

Humidity

In Roulette, the average relative humidity in September is 81%.

Rainfall

In Roulette, in September, it is raining for 13.7 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 162.1 rainfall days, and 27.36" (695mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Roulette is 12h and 28min.
On the first day of September, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm EDT.

Sunshine

In September, the average sunshine is 8.1h.

UV index

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What is the temperature in September?

An average high-temperature, in September, in Roulette, is 70°F (21.1°C) and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in September?

In Roulette, the average relative humidity in September is 81%.

How many days does it rain in September?

In Roulette, in September, during 13.7 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall in Roulette.

Does it snow in September?

In Roulette, Pennsylvania, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Roulette have in September?

The average day length in September is 12h and 28min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:39 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:55 pm EDT.

How many hours of sunshine does Roulette have in September?

In Roulette, the average sunshine duration in September is 8.1h.

How high is the UV index in September?

In Roulette, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes 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 September
Roulette, PA

Average temperature in September - Roulette, PA
  • Average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

Average pressure in September
Roulette, PA

Average pressure in September - Roulette, PA
  • Average pressure in September: 30.06"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 September
Roulette, PA

Average wind speed in September - Roulette, PA
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in September
Roulette, PA

Average humidity in September - Roulette, PA
  • Average humidity in September: 81%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (78%).

Average rainfall in September
Roulette, PA

Average rainfall in September - Roulette, PA
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is August (1.85").

Average rainfall days in September
Roulette, PA

Average rainfall days in September - Roulette, PA
  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
Roulette, PA

Average snowfall in September - Roulette, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (10.51").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Roulette, PA

Average snowfall days in September - Roulette, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Roulette, PA

Average daylight in September / Average sunshine in September - Roulette, PA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 1min

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

Average sunshine days in September
Roulette, PA

Average sunshine days in September - Roulette, PA
  • Average sunshine days in September: 13.7 days

The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is February (5.2 days).

Average UV index in September
Roulette, PA

Average UV index in September - Roulette, PA
  • Average UV index in September: 3

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 September
Roulette, PA

Average cloud cover in September - Roulette, PA
  • Average cloud cover in September: 47

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 42).

Average visibility in September
Roulette, PA

Average visibility in September - Roulette, PA
  • Average visibility in September: 4mi

The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).

Roulette, Pennsylvania, USA

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