September weather forecast
Trout Run, PA

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Weather in September

September, the first month of the autumn in Trout Run, is still a pleasant month, with an average temperature fluctuating between 72.1°F (22.3°C) and 51.4°F (10.8°C).

Temperature

In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 79.2°F (26.2°C) in August to a pleasant 72.1°F (22.3°C). September brings Trout Run a consistent average low-temperature of 51.4°F (10.8°C).

Humidity

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

Rainfall

In September, the rain falls for 11.2 days. Throughout September, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 145.2 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

In Trout Run, snow does not fall in May through September.

Daylight

In Trout Run, the average length of the day in September is 12h and 28min.
On the first day of September in Trout Run, sunrise is at 6:35 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:51 pm EDT.

Sunshine

The average sunshine in September in Trout Run is 8.6h.

UV index

The average daily maximum UV index in September in Trout Run, Pennsylvania, is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 3 in September translates into these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What is the temperature in September in Trout Run?

In September, the average high-temperature and low-temperature in Trout Run are 72.1°F (22.3°C) and 51.4°F (10.8°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 87.8°F (31°C).

What is the average humidity in September in Trout Run?

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

How many days does it rain in September in Trout Run?

In Trout Run, Pennsylvania, during September, the rain falls for 11.2 days and regularly aggregates up to 1.38" (35mm) of precipitation.

When it does not snow in Trout Run?

May through September are months without snowfall.

Does it snow in Trout Run in September?

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

What is the average length of the day in September in Trout Run?

In September, the average day length in Trout Run, Pennsylvania, is 12h and 28min.

When are sunrise and sunset in September in Trout Run?

On the first day of September in Trout Run, Pennsylvania, sunrise is at 6:35 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:51 pm EDT.

How many hours of sunshine does Trout Run have in September?

The average sunshine duration in September in Trout Run, Pennsylvania, is 8.6h.

What is the UV index reading in September in Trout Run?

In September, the average daily maximum UV index in Trout Run, Pennsylvania, is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
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
Trout Run, PA

Average temperature in September - Trout Run, PA
  • Average high temperature in September: 72.1°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 September: 51.4°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 September
Trout Run, PA

Average pressure in September - Trout Run, PA
  • Average pressure in September: 30.07"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 September
Trout Run, PA

Average wind speed in September - Trout Run, PA
  • Average wind speed in September: 5.3mph

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 September
Trout Run, PA

Average humidity in September - Trout Run, PA
  • Average humidity in September: 81%

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 September
Trout Run, PA

Average rainfall in September - Trout Run, PA
  • Average rainfall in September: 1.38"

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 September
Trout Run, PA

Average rainfall days in September - Trout Run, PA
  • Average rainfall days in September: 11.2 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 September
Trout Run, PA

Average snowfall in September - Trout Run, PA
  • Average snowfall in September: 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 September
Trout Run, PA

Average snowfall days in September - Trout Run, PA
  • Average snowfall days in September: 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 September /
Average sunshine in September
Trout Run, PA

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

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 September: 8h and 4min

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 September
Trout Run, PA

Average sunshine days in September - Trout Run, PA
  • Average sunshine days in September: 16.8 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 September
Trout Run, PA

Average UV index in September - Trout Run, PA
  • Average UV index in September: 3

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 September
Trout Run, PA

Average cloud cover in September - Trout Run, PA
  • Average cloud cover in September: 41

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 September
Trout Run, PA

Average visibility in September - Trout Run, PA
  • Average visibility in September: 4mi

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

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Trout Run, Pennsylvania, USA

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