September weather forecast
Oak Ridge, PA

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Weather in September

September, the first month of the autumn in Oak Ridge, is also an agreeable month, with an average temperature ranging between min 52.2°F (11.2°C) and max 72.1°F (22.3°C).

Temperature

Oak Ridge's September weather features a light decline in high-temperatures, reducing from a moderately hot 78.6°F (25.9°C) in August to a pleasant 72.1°F (22.3°C). An average low-temperature of 52.2°F (11.2°C) marks the nights throughout September.

Humidity

In September, the average relative humidity in Oak Ridge is 80%.

Rainfall

In September, the rain falls for 12.7 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 150.5 rainfall days, and 22.05" (560mm) of precipitation is accumulated.

Snowfall

In Oak Ridge, Pennsylvania, snow does not fall in June through September.

Daylight

In Oak Ridge, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

Sunshine

In Oak Ridge, the average sunshine in September is 8.3h.

UV index

In Oak Ridge, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In September, a daily UV index of 3 turns into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Oak Ridge in September?

In Oak Ridge, 72.1°F (22.3°C) is the average high-temperature and 52.2°F (11.2°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in July is appraised at 86°F (30°C).

What is the average humidity in September?

In Oak Ridge, the average relative humidity in September is 80%.

How much does it rain in September?

In Oak Ridge, Pennsylvania, during September, the rain falls for 12.7 days and regularly aggregates up to 1.73" (44mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In Oak Ridge, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Oak Ridge 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 6:44 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm EDT.

How long on average sun shines in September in Oak Ridge?

The average sunshine duration in September is 8.3h.

How high is the UV index in September?

In Oak Ridge, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
Oak Ridge, PA

Average temperature in September - Oak Ridge, PA
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in September: 52.2°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 (17.8°F).

Average pressure in September
Oak Ridge, PA

Average pressure in September - Oak Ridge, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in September
Oak Ridge, PA

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

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Oak Ridge, PA

Average humidity in September - Oak Ridge, PA
  • Average humidity in September: 80%

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 September
Oak Ridge, PA

Average rainfall in September - Oak Ridge, PA
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is November (1.26").

Average rainfall days in September
Oak Ridge, PA

Average rainfall days in September - Oak Ridge, PA
  • Average rainfall days in September: 12.7 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in September
Oak Ridge, PA

Average snowfall in September - Oak Ridge, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Oak Ridge, PA

Average snowfall days in September - Oak Ridge, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Oak Ridge, PA

Average daylight in September / Average sunshine in September - Oak Ridge, 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 18min).

  • Average sunshine in September: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in September
Oak Ridge, PA

Average sunshine days in September - Oak Ridge, PA
  • Average sunshine days in September: 14.9 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.1 days).

Average UV index in September
Oak Ridge, PA

Average UV index in September - Oak Ridge, PA
  • Average UV index in September: 3

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 September
Oak Ridge, PA

Average cloud cover in September - Oak Ridge, PA
  • Average cloud cover in September: 43

The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in September
Oak Ridge, PA

Average visibility in September - Oak Ridge, PA
  • Average visibility in September: 5mi

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

Oak Ridge, Pennsylvania, USA

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