September weather forecast
Chester Heights, PA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Chester Heights, Pennsylvania, with temperature in the range of an average low of 60.1°F (15.6°C) and an average high of 76.3°F (24.6°C).

Temperature

The advent of September brings a subtle shift in temperature, with the average high moving from a warm 83.1°F (28.4°C) in August to a still moderately hot 76.3°F (24.6°C). The temperature lowers to an average of 60.1°F (15.6°C) during September nights.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Chester Heights, in September, during 13.6 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Chester Heights, during the entire year, the rain falls for 166.6 days and collects up to 35.59" (904mm) of precipitation.

Snowfall

In Chester Heights, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September in Chester Heights, 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 6:45 pm EDT.

Sunshine

In Chester Heights, the average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.

Frequently asked questions

What are the temperatures in September?

In September, in Chester Heights, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 60.1°F (15.6°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 76%.

How much does it rain in September?

In Chester Heights, in September, during 13.6 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September in Chester Heights?

In September, the average day length is 12h and 26min.

When is the sunrise / sunset in September?

On the first day of September, 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 6:45 pm EDT.

How many hours of sunshine does Chester Heights have in September?

The average sunshine duration in September is 8.7h.

What is the UV index intensity in September?

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

Average temperature in September - Chester Heights, PA
  • Average high temperature in September: 76.3°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°F).

  • Average low temperature in September: 60.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in September
Chester Heights, PA

Average pressure in September - Chester Heights, 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).

Average wind speed in September
Chester Heights, PA

Average wind speed in September - Chester Heights, PA
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Chester Heights, PA

Average humidity in September - Chester Heights, PA
  • Average humidity in September: 76%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in September
Chester Heights, PA

Average rainfall in September - Chester Heights, PA
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

Average rainfall days in September
Chester Heights, PA

Average rainfall days in September - Chester Heights, PA
  • Average rainfall days in September: 13.6 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Chester Heights, PA

Average snowfall in September - Chester Heights, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Chester Heights, PA

Average snowfall days in September - Chester Heights, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Chester Heights, PA

Average daylight in September / Average sunshine in September - Chester Heights, 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 4min

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 48min).

Average sunshine days in September
Chester Heights, PA

Average sunshine days in September - Chester Heights, PA
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (10 days).

Average UV index in September
Chester Heights, PA

Average UV index in September - Chester Heights, 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).

Average cloud cover in September
Chester Heights, PA

Average cloud cover in September - Chester Heights, PA
  • Average cloud cover in September: 39

The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Chester Heights, PA

Average visibility in September - Chester Heights, PA
  • Average visibility in September: 5mi

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

Chester Heights, Pennsylvania, USA

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