September weather forecast
Shillington, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Shillington, Pennsylvania, with an average temperature ranging between min 55.8°F (13.2°C) and max 74.5°F (23.6°C).

Temperature

Shillington's progression into September involves a gentle drop in the average high-temperature, from 80.6°F (27°C) in August to a still warm 74.5°F (23.6°C). September brings with it a nighttime average temperature of 55.8°F (13.2°C).

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Shillington, in September, during 12.2 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. In Shillington, during the entire year, the rain falls for 155.7 days and collects up to 30.83" (783mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:47 pm EDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Shillington, Pennsylvania, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

What is the average September temperature?

September temperatures vary between a high-temperature of 74.5°F (23.6°C) and a low-temperature of 55.8°F (13.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 86°F (30°C).

What is the average humidity in September?

In Shillington, the average relative humidity in September is 79%.

How much does it rain in September?

In Shillington, in September, it is raining for 12.2 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

How many hours of daylight does Shillington have in September?

In Shillington, 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 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:47 pm EDT.

How long on average sun shines in September?

In Shillington, the average sunshine duration in September is 8.8h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Shillington, PA

Average temperature in September - Shillington, PA
  • Average high temperature in September: 74.5°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in September
Shillington, PA

Average pressure in September - Shillington, 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
Shillington, PA

Average wind speed in September - Shillington, PA
  • Average wind speed in September: 5.4mph

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Shillington, PA

Average humidity in September - Shillington, 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
Shillington, PA

Average rainfall in September - Shillington, PA
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (2.05").

Average rainfall days in September
Shillington, PA

Average rainfall days in September - Shillington, PA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in September
Shillington, PA

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

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Shillington, PA

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

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Shillington, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in September
Shillington, PA

Average sunshine days in September - Shillington, PA
  • Average sunshine days in September: 15.4 days

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (10.8 days).

Average UV index in September
Shillington, PA

Average UV index in September - Shillington, 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
Shillington, PA

Average cloud cover in September - Shillington, PA
  • Average cloud cover in September: 38

The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Shillington, PA

Average visibility in September - Shillington, PA
  • Average visibility in September: 5mi

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

Shillington, Pennsylvania, USA

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