September weather forecast
Reading, PA

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This beautiful and colorful pagoda located up on Mt. Penn is a beautiful spot to enjoy sweeping views of the scenic Reading City below, in Pennsylvania
This beautiful and colorful pagoda located up on Mt. Penn is a beautiful spot to enjoy sweeping views of the scenic Reading City below, in Pennsylvania

Weather in September

September in Reading, Pennsylvania, highlights the turn of season with falling temperatures and reducing daylight hours. Signalling the arrival of fall, leaves begin to change color, and average high and low temperatures fall to 74.5°F (23.6°C) and 55.8°F (13.2°C), respectively. While the heat gradually disappears, the vibrancy of autumn colors adds a warm hue to the landscape. Residences are adorned with pumpkins, signaling the beginning of the harvest season. The cooler nights and crisp air make it an ideal time for warm blankets, hot chocolate, and campfires.

Temperature

The arrival of September in Reading corresponds with a light shift in temperature, down from 80.6°F (27°C) in August to a still warm 74.5°F (23.6°C). Reading's average low-temperature for the month of September records at a mild 55.8°F (13.2°C).

Humidity

The average relative humidity in September in Reading is 79%.

Rainfall

In Reading, in September, it is raining for 12.2 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, there are 155.7 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September in Reading is 12h and 27min.
On the first day of the month, sunrise is at 6:31 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:47 pm EDT.

Sunshine

The average sunshine in September in Reading is 8.8h.

UV index

In Reading, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What is the temperature in September in Reading?

The average high-temperature, in September, in Reading, is 74.5°F (23.6°C), while the average low-temperature is 55.8°F (13.2°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in September in Reading?

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

How much does it rain in Reading in September?

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

When it does not snow in Reading?

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

Does it snow in Reading in September?

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

How many hours of daylight does Reading have in September?

The average day length in September in Reading, Pennsylvania, is 12h and 27min.

When is the sunrise / sunset in September in Reading?

In September, on the first day of the month, sunrise is at 6:31 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 Reading?

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

What is the UV index reading in September in Reading?

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Reading, PA

Average temperature in September - Reading, 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).

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Average pressure in September
Reading, PA

Average pressure in September - Reading, 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).

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Average wind speed in September
Reading, PA

Average wind speed in September - Reading, 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).

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Average humidity in September
Reading, PA

Average humidity in September - Reading, 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%).

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Average rainfall in September
Reading, PA

Average rainfall in September - Reading, 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").

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Average rainfall days in September
Reading, PA

Average rainfall days in September - Reading, 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).

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Average snowfall in September
Reading, PA

Average snowfall in September - Reading, 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").

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Average snowfall days in September
Reading, PA

Average snowfall days in September - Reading, 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).

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

Average daylight in September / Average sunshine in September - Reading, 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).

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Average sunshine days in September
Reading, PA

Average sunshine days in September - Reading, 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).

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Average UV index in September
Reading, PA

Average UV index in September - Reading, 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).

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Average cloud cover in September
Reading, PA

Average cloud cover in September - Reading, 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).

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Average visibility in September
Reading, PA

Average visibility in September - Reading, 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).

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Reading, Pennsylvania, USA

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