September weather forecast
Berwyn, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Berwyn, New York, with an average temperature varying between 69.6°F (20.9°C) and 50.9°F (10.5°C).

Temperature

September brings a slight decrease in the average high-temperature, shifting from a warm 75.7°F (24.3°C) in August to a pleasant 69.6°F (20.9°C). Throughout September, the temperature in Berwyn tends to fall to a consistent average low of 50.9°F (10.5°C).

Humidity

In September, the average relative humidity is 80%.

Rainfall

The month with the least rainfall in Berwyn is September, when the rain falls for 8.7 days and typically collects 0.63" (16mm) of precipitation.

Snowfall

In Berwyn, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:29 am and sunset at 7:38 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:46 pm EDT.

Sunshine

In Berwyn, the average sunshine in September is 8.6h.

UV index

In Berwyn, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find 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 are the temperatures in Berwyn in September?

An average high-temperature, in September, in Berwyn, is 69.6°F (20.9°C) and the average low-temperature is 50.9°F (10.5°C).

What is the average humidity in September in Berwyn?

The average relative humidity in September in Berwyn, New York, is 80%.

What is the driest month in Berwyn?

The month with the least rainfall in Berwyn, New York, is September, when the rain falls for 8.7 days and typically collects 0.63" (16mm) of precipitation.

How much does it rain in Berwyn in September?

In Berwyn, New York, in September, it is raining for 8.7 days, with typically 0.63" (16mm) of accumulated precipitation.

When it does not snow in Berwyn?

June through September are months without snowfall in Berwyn, New York.

Does it snow in Berwyn in September?

In Berwyn, New York, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Berwyn have in September?

In Berwyn, the average day length in September is 12h and 29min.

What time are sunrise and sunset in September in Berwyn?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:38 pm. On the last day of the month, in Berwyn, New York, sunrise is at 7:01 am and sunset at 6:46 pm EDT.

How long on average sun shines in September in Berwyn?

In Berwyn, New York, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Berwyn?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents 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
Berwyn, NY

Average temperature in September - Berwyn, NY
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in September: 50.9°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in September
Berwyn, NY

Average pressure in September - Berwyn, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Berwyn, NY

Average wind speed in September - Berwyn, NY
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in September
Berwyn, NY

Average humidity in September - Berwyn, NY
  • Average humidity in September: 80%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

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Average rainfall in September
Berwyn, NY

Average rainfall in September - Berwyn, NY
  • Average rainfall in September: 0.63"

The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is September (0.63").

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Average rainfall days in September
Berwyn, NY

Average rainfall days in September - Berwyn, NY
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in September
Berwyn, NY

Average snowfall in September - Berwyn, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is November (2.44").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Berwyn, NY

Average snowfall days in September - Berwyn, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (14.3 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
Berwyn, NY

Average daylight in September / Average sunshine in September - Berwyn, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

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Average sunshine days in September
Berwyn, NY

Average sunshine days in September - Berwyn, NY
  • Average sunshine days in September: 17.8 days

The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (12.9 days).

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Average UV index in September
Berwyn, NY

Average UV index in September - Berwyn, NY
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Berwyn, NY

Average cloud cover in September - Berwyn, NY
  • Average cloud cover in September: 38

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in September
Berwyn, NY

Average visibility in September - Berwyn, NY
  • Average visibility in September: 5mi

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

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Berwyn, New York, USA

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