September weather forecast
Red Hill, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Red Hill, Pennsylvania, with an average temperature varying between 56.7°F (13.7°C) and 75.7°F (24.3°C).

Temperature

With the onset of September, Red Hill experiences a modest temperature adjustment, with the average high-temperature gently receding from a warm 82.2°F (27.9°C) in August to a still moderately hot 75.7°F (24.3°C). In September, the recorded average low-temperature is a mild 56.7°F (13.7°C).

Humidity

In Red Hill, the average relative humidity in September is 78%.

Rainfall

The month with the least rainfall in Red Hill is September, when the rain falls for 12 days and typically collects 1.65" (42mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Red Hill, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 4 in September translates into this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

An average high-temperature, in September, in Red Hill, is 75.7°F (24.3°C) and the average low-temperature is 56.7°F (13.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the average humidity in September?

In September, the average relative humidity is 78%.

What is the driest month?

September is the month with the least rainfall in Red Hill. Rain falls for 12 days and accumulates 1.65" (42mm) of precipitation.

How many days does it rain in September?

In Red Hill, in September, during 12 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

When it does not snow in Red Hill?

In Red Hill, snow does not fall in June through September.

Does it snow in September?

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

What is the average length of the day in September?

In Red Hill, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

How many hours of sunshine does Red Hill have in September?

The average sunshine duration in September is 8.7h.

What is the UV index reading in September in Red Hill?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe 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
Red Hill, PA

Average temperature in September - Red Hill, PA
  • Average high temperature in September: 75.7°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in September: 56.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in September
Red Hill, PA

Average pressure in September - Red Hill, PA
  • Average pressure in September: 30.06"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
Red Hill, PA

Average wind speed in September - Red Hill, PA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Red Hill, PA

Average humidity in September - Red Hill, PA
  • Average humidity in September: 78%

The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).

Average rainfall in September
Red Hill, PA

Average rainfall in September - Red Hill, PA
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in September
Red Hill, PA

Average rainfall days in September - Red Hill, PA
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in September
Red Hill, PA

Average snowfall in September - Red Hill, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Red Hill, PA

Average snowfall days in September - Red Hill, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Red Hill, PA

Average daylight in September / Average sunshine in September - Red Hill, 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 18min).

  • 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 30min).

Average sunshine days in September
Red Hill, PA

Average sunshine days in September - Red Hill, PA
  • Average sunshine days in September: 16 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is April (12 days).

Average UV index in September
Red Hill, PA

Average UV index in September - Red Hill, 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
Red Hill, PA

Average cloud cover in September - Red Hill, PA
  • Average cloud cover in September: 39

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 33).

Average visibility in September
Red Hill, PA

Average visibility in September - Red Hill, PA
  • Average visibility in September: 5mi

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

Red Hill, Pennsylvania, USA

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