September weather forecast
Wallingford, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Wallingford, Pennsylvania, with an average temperature fluctuating between 76.6°F (24.8°C) and 60.8°F (16°C).

Temperature

Wallingford experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from 83.5°F (28.6°C) in August to a still warm 76.6°F (24.8°C). The nighttime temperature in Wallingford dips to an enjoyable 60.8°F (16°C) on average during September.

Humidity

The average relative humidity in September in Wallingford, Pennsylvania, is 76%.

Rainfall

In September, in Wallingford, Pennsylvania, the rain falls for 12.6 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Wallingford, during the entire year, the rain falls for 148.4 days and collects up to 25.94" (659mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September in Wallingford, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

Sunshine

In Wallingford, the average sunshine in September is 8.9h.

UV index

In Wallingford, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Experience reduced UV exposure by about half when donning a wide-brim hat.
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Frequently asked questions

What is the temperature in September in Wallingford?

The high-temperature in Wallingford during September is 76.6°F (24.8°C) and the low-temperature is 60.8°F (16°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Wallingford?

In Wallingford, the average relative humidity in September is 76%.

How much does it rain in Wallingford in September?

In Wallingford, in September, during 12.6 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Wallingford?

June through October are months without snowfall in Wallingford.

How many hours of daylight does Wallingford have in September?

The average day length in September in Wallingford is 12h and 26min.

What time are sunrise and sunset in September in Wallingford?

On the first day of September in Wallingford, sunrise is at 6:30 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm EDT.

How many hours of sunshine does Wallingford have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September in Wallingford?

In September, the average daily maximum UV index in Wallingford is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Wallingford, PA

Average temperature in September - Wallingford, PA
  • Average high temperature in September: 76.6°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 60.8°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in September
Wallingford, PA

Average pressure in September - Wallingford, PA
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Wallingford, PA

Average wind speed in September - Wallingford, PA
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in September
Wallingford, PA

Average humidity in September - Wallingford, PA
  • Average humidity in September: 76%

The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Wallingford, PA

Average rainfall in September - Wallingford, PA
  • Average rainfall in September: 1.73"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").

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Average rainfall days in September
Wallingford, PA

Average rainfall days in September - Wallingford, PA
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).

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Average snowfall in September
Wallingford, PA

Average snowfall in September - Wallingford, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Wallingford, PA

Average snowfall days in September - Wallingford, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Wallingford, PA

Average daylight in September / Average sunshine in September - Wallingford, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in September
Wallingford, PA

Average sunshine days in September - Wallingford, PA
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in September
Wallingford, PA

Average UV index in September - Wallingford, PA
  • Average UV index in September: 5

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

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Average cloud cover in September
Wallingford, PA

Average cloud cover in September - Wallingford, PA
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in September
Wallingford, PA

Average visibility in September - Wallingford, PA
  • Average visibility in September: 6mi

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

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Wallingford, Pennsylvania, USA

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