September weather forecast
Oley Line, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Oley Line, Pennsylvania, with an average temperature varying between 56.3°F (13.5°C) and 74.8°F (23.8°C).

Temperature

With the onset of September, Oley Line's climate undergoes a slight change as the average high-temperature moves from 80.6°F (27°C) in August to a still warm 74.8°F (23.8°C). An average low-temperature of 56.3°F (13.5°C) is expected during September.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Oley Line, in September, it is raining for 9.8 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 129 rainfall days, and 13.5" (343mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Oley Line.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature, in September, in Oley Line, is 74.8°F (23.8°C), while the low-temperature averages to 56.3°F (13.5°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 79%.

How many days does it rain in September?

In Oley Line, in September, during 9.8 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

When it does not snow?

In Oley Line, snow does not fall in June through October.

How many hours of daylight does Oley Line have in September?

The average day length in September is 12h and 27min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:46 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.9h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. 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
Oley Line, PA

Average temperature in September - Oley Line, PA
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Oley Line, PA

Average pressure in September - Oley Line, PA
  • Average pressure in September: 30.06"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 September
Oley Line, PA

Average wind speed in September - Oley Line, PA
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Oley Line, PA

Average humidity in September - Oley Line, PA
  • Average humidity in September: 79%

The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).

Average rainfall in September
Oley Line, PA

Average rainfall in September - Oley Line, PA
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is February (0.79").

Average rainfall days in September
Oley Line, PA

Average rainfall days in September - Oley Line, PA
  • Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in September
Oley Line, PA

Average snowfall in September - Oley Line, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.54").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in September
Oley Line, PA

Average snowfall days in September - Oley Line, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Oley Line, PA

Average daylight in September / Average sunshine in September - Oley Line, PA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in September
Oley Line, PA

Average sunshine days in September - Oley Line, PA
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in September
Oley Line, PA

Average UV index in September - Oley Line, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June and 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 September
Oley Line, PA

Average cloud cover in September - Oley Line, PA
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Oley Line, PA

Average visibility in September - Oley Line, PA
  • Average visibility in September: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).

Oley Line, Pennsylvania, USA

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