September weather forecast
Rydal, PA

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Weather in September

September, the first month of the autumn in Rydal, is also a moderately hot month, with an average temperature ranging between max 76.1°F (24.5°C) and min 59.9°F (15.5°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's moderately hot 83.3°F (28.5°C) to a still warm 76.1°F (24.5°C). In September, the average low-temperature records at a moderate 59.9°F (15.5°C) during the nights.

Humidity

In Rydal, the average relative humidity in September is 75%.

Rainfall

The month with the least rainfall in Rydal is September, when the rain falls for 10.1 days and typically collects 0.75" (19mm) of precipitation.

Snowfall

In Rydal, snow does not fall in May through October.

Daylight

In September, the average length of the day in Rydal is 12h and 26min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm EDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Rydal, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

What is the usual temperature for Rydal in September?

Rydal in September has an average high-temperature of 76.1°F (24.5°C) and an average low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 75%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 10.1 days and accumulates 0.75" (19mm) of precipitation.

How many days does it rain in September?

In Rydal, in September, during 10.1 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Rydal have in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm EDT.

How many hours of sunshine does Rydal have in September?

The average sunshine duration in September is 8.8h.

How high is the UV index in September?

In Rydal, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Rydal, PA

Average temperature in September - Rydal, PA
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in September
Rydal, PA

Average pressure in September - Rydal, 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
Rydal, PA

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

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Rydal, PA

Average humidity in September - Rydal, PA
  • Average humidity in September: 75%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in September
Rydal, PA

Average rainfall in September - Rydal, PA
  • Average rainfall in September: 0.75"

The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in September
Rydal, PA

Average rainfall days in September - Rydal, PA
  • Average rainfall days in September: 10.1 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).

Average snowfall in September
Rydal, PA

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

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Rydal, PA

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

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Rydal, 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 48min).

Average sunshine days in September
Rydal, PA

Average sunshine days in September - Rydal, PA
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in September
Rydal, PA

Average UV index in September - Rydal, 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, March, November and December (UV index 2).

Average cloud cover in September
Rydal, PA

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

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in September
Rydal, PA

Average visibility in September - Rydal, 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).

Rydal, Pennsylvania, USA

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