September weather forecast
Potterstown, NJ

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Weather in September

September, the first month of the autumn in Potterstown, is also a moderately hot month, with an average temperature varying between 56.5°F (13.6°C) and 74.7°F (23.7°C).

Temperature

Potterstown in September experiences a gentle temperature dip, with average high-temperatures reducing from a moderately hot 81.9°F (27.7°C) in August to a still warm 74.7°F (23.7°C). Potterstown records an average low-temperature of 56.5°F (13.6°C) throughout the month of September.

Humidity

In Potterstown, the average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.54" (39mm) of precipitation.

Snowfall

June through September are months without snowfall in Potterstown.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:55 am and sunset at 6:42 pm EDT.

Sunshine

In Potterstown, the average sunshine in September is 8.7h.

UV index

In Potterstown, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the usual temperature for Potterstown in September?

Potterstown in September has an average high-temperature of 74.7°F (23.7°C) and an average low-temperature of 56.5°F (13.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September in Potterstown?

In September, the average relative humidity in Potterstown, New Jersey, is 78%.

What is the driest month in Potterstown?

September is the month with the least rainfall in Potterstown. Rain falls for 12.1 days and accumulates 1.54" (39mm) of precipitation.

How many days does it rain in September in Potterstown?

In September, in Potterstown, New Jersey, the rain falls for 12.1 days. Throughout September, 1.54" (39mm) of precipitation is accumulated.

When it does not snow in Potterstown?

June through September are months without snowfall in Potterstown, New Jersey.

Does it snow in Potterstown in September?

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

What is the average length of the day in September in Potterstown?

In September, the average day length in Potterstown is 12h and 27min.

When are sunrise and sunset in September in Potterstown?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:30 pm. On the last day of the month, in Potterstown, sunrise is at 6:55 am and sunset at 6:42 pm EDT.

How many hours of sunshine does Potterstown have in September?

In Potterstown, the average sunshine duration in September is 8.7h.

What is the UV index reading in September in Potterstown?

The average daily maximum UV index in September in Potterstown is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to 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
Potterstown, NJ

Average temperature in September - Potterstown, NJ
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in September
Potterstown, NJ

Average pressure in September - Potterstown, NJ
  • 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 (29.93"Hg).

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Average wind speed in September
Potterstown, NJ

Average wind speed in September - Potterstown, NJ
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Potterstown, NJ

Average humidity in September - Potterstown, NJ
  • Average humidity in September: 78%

The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in September
Potterstown, NJ

Average rainfall in September - Potterstown, NJ
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is July (2.95").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Potterstown, NJ

Average rainfall days in September - Potterstown, NJ
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (9 days).

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Average snowfall in September
Potterstown, NJ

Average snowfall in September - Potterstown, NJ
  • Average snowfall in September: 0"

The month with the highest snowfall is March (3.78").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Potterstown, NJ

Average snowfall days in September - Potterstown, NJ
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.1 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
Potterstown, NJ

Average daylight in September / Average sunshine in September - Potterstown, NJ
  • Average daylight in September: 12h and 3min

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 18min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Potterstown, NJ

Average sunshine days in September - Potterstown, NJ
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).

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Average UV index in September
Potterstown, NJ

Average UV index in September - Potterstown, NJ
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Potterstown, NJ

Average cloud cover in September - Potterstown, NJ
  • Average cloud cover in September: 39

The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

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Average visibility in September
Potterstown, NJ

Average visibility in September - Potterstown, NJ
  • Average visibility in September: 5mi

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

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Potterstown, New Jersey, USA

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