September weather forecast
Potter Brook, PA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Potter Brook, Pennsylvania, with temperature in the range of an average low of 49.6°F (9.8°C) and an average high of 69.8°F (21°C).

Temperature

September brings a minor shift in the average high-temperature, adjusting from a warm 77°F (25°C) in August to a pleasant 69.8°F (21°C). In Potter Brook, the average low-temperature during the month of September is a chilly 49.6°F (9.8°C).

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 2.17" (55mm) of precipitation.

Snowfall

In Potter Brook, snow does not fall in June through September.

Daylight

In Potter Brook, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:43 pm. On the last day of September, sunrise is at 7:07 am and sunset at 6:53 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 3 during September translates into these guidelines:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Potter Brook?

In Potter Brook, in September, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 49.6°F (9.8°C).

What is the average humidity in September?

The average relative humidity in September is 81%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 14.2 days and accumulates 2.17" (55mm) of precipitation.

How many days does it rain in September?

In Potter Brook, during September, the rain falls for 14.2 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In Potter Brook, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Potter Brook have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:36 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:53 pm EDT.

How many hours of sunshine does Potter Brook have in September?

The average sunshine duration in September is 8.3h.

What is the UV index reading in September in Potter Brook?

In September, the average daily maximum UV index in Potter Brook is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Potter Brook, PA

Average temperature in September - Potter Brook, PA
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in September: 49.6°F

The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in September
Potter Brook, PA

Average pressure in September - Potter Brook, 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
Potter Brook, PA

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

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Potter Brook, PA

Average humidity in September - Potter Brook, PA
  • Average humidity in September: 81%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are June and July (78%).

Average rainfall in September
Potter Brook, PA

Average rainfall in September - Potter Brook, PA
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in September
Potter Brook, PA

Average rainfall days in September - Potter Brook, PA
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in September
Potter Brook, PA

Average snowfall in September - Potter Brook, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (10.2").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Potter Brook, PA

Average snowfall days in September - Potter Brook, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Potter Brook, PA

Average daylight in September / Average sunshine in September - Potter Brook, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).

Average sunshine days in September
Potter Brook, PA

Average sunshine days in September - Potter Brook, PA
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.9 days).

Average UV index in September
Potter Brook, PA

Average UV index in September - Potter Brook, 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
Potter Brook, PA

Average cloud cover in September - Potter Brook, PA
  • Average cloud cover in September: 45

The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 41).

Average visibility in September
Potter Brook, PA

Average visibility in September - Potter Brook, PA
  • Average visibility in September: 4mi

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

Potter Brook, Pennsylvania, USA

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