September weather forecast
Carroll Valley, PA

Share

Weather in September

The first month of the autumn, September, is still a warm month in Carroll Valley, Pennsylvania, with an average temperature fluctuating between 74.8°F (23.8°C) and 55.9°F (13.3°C).

Temperature

September's onset brings a negligible change in high-temperatures, falling from a moderately hot 81.7°F (27.6°C) in August to a still warm 74.8°F (23.8°C). Carroll Valley reports an average low-temperature of 55.9°F (13.3°C) during the nights of September.

Humidity

The average relative humidity in September in Carroll Valley is 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 10 days and accumulates 0.55" (14mm) of precipitation.

Snowfall

In Carroll Valley, snow does not fall in May through October.

Daylight

The average length of the day in September is 12h and 26min.
On the first day of September, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 4 during September translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

Carroll Valley in September has an average high-temperature of 74.8°F (23.8°C) and an average low-temperature of 55.9°F (13.3°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

What is the driest month?

September is the month with the least rainfall in Carroll Valley. Rain falls for 10 days and accumulates 0.55" (14mm) of precipitation.

How much does it rain in September?

In Carroll Valley, in September, it is raining for 10 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow in Carroll Valley?

May through October are months without snowfall.

How many hours of daylight does Carroll Valley have in September?

In Carroll Valley, Pennsylvania, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 6:53 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration in Carroll Valley, Pennsylvania, is 8.7h.

What is the UV index reading in September?

In September, the average daily maximum UV index in Carroll Valley is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Carroll Valley, PA

Average temperature in September - Carroll Valley, PA
  • Average high temperature in September: 74.8°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in September: 55.9°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in September
Carroll Valley, PA

Average pressure in September - Carroll Valley, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Carroll Valley, PA

Average wind speed in September - Carroll Valley, PA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
Carroll Valley, PA

Average humidity in September - Carroll Valley, PA
  • Average humidity in September: 79%

The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is July (75%).

Average rainfall in September
Carroll Valley, PA

Average rainfall in September - Carroll Valley, PA
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in September
Carroll Valley, PA

Average rainfall days in September - Carroll Valley, PA
  • Average rainfall days in September: 10 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.4 days).

Average snowfall in September
Carroll Valley, PA

Average snowfall in September - Carroll Valley, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Carroll Valley, PA

Average snowfall days in September - Carroll Valley, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 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
Carroll Valley, PA

Average daylight in September / Average sunshine in September - Carroll Valley, PA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
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 30min).

Average sunshine days in September
Carroll Valley, PA

Average sunshine days in September - Carroll Valley, PA
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (12.9 days).

Average UV index in September
Carroll Valley, PA

Average UV index in September - Carroll Valley, PA
  • Average UV index in September: 4

The months with the highest UV index are 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
Carroll Valley, PA

Average cloud cover in September - Carroll Valley, PA
  • Average cloud cover in September: 38

The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Carroll Valley, PA

Average visibility in September - Carroll Valley, PA
  • Average visibility in September: 5mi

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

Carroll Valley, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location