September weather forecast
Birchrunville, PA

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Weather in September

The first month of the autumn, September, is still a warm month in Birchrunville, Pennsylvania, with an average temperature ranging between min 58.6°F (14.8°C) and max 75.7°F (24.3°C).

Temperature

The arrival of September suggests a slight decrease in the average high-temperature, moving from 82.8°F (28.2°C) in August to a still moderately hot 75.7°F (24.3°C). Birchrunville usually reports an average low-temperature of 58.6°F (14.8°C) during the month of September.

Humidity

The average relative humidity in September is 77%.

Rainfall

In Birchrunville, Pennsylvania, in September, during 11.8 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Birchrunville, during the entire year, the rain falls for 132.3 days and collects up to 13.98" (355mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of September, sunrise is at 6:58 am and sunset at 6:45 pm EDT.

Sunshine

In September, the average sunshine in Birchrunville is 8.7h.

UV index

In Birchrunville, 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 radiation for average individuals.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What are the temperatures in September?

During September, Birchrunville experiences an average high-temperature of 75.7°F (24.3°C) and a low-temperature of 58.6°F (14.8°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is appraised at 89.6°F (32°C).

What is the average humidity in September in Birchrunville?

The average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 11.8 days. Throughout September, 0.91" (23mm) of precipitation is accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in September in Birchrunville?

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

What time are sunrise and sunset in September in Birchrunville?

In September, on the first day of the month, 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 long on average sun shines 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 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Birchrunville, PA

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

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in September
Birchrunville, PA

Average pressure in September - Birchrunville, 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
Birchrunville, PA

Average wind speed in September - Birchrunville, PA
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in September
Birchrunville, PA

Average humidity in September - Birchrunville, PA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are April and July (74%).

Average rainfall in September
Birchrunville, PA

Average rainfall in September - Birchrunville, PA
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is August (1.77").
The driest month (with the least rainfall) is February (0.75").

Average rainfall days in September
Birchrunville, PA

Average rainfall days in September - Birchrunville, PA
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in September
Birchrunville, PA

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

The months with the highest snowfall are January and February (0.59").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Birchrunville, PA

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

The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Birchrunville, 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 36min).

Average sunshine days in September
Birchrunville, PA

Average sunshine days in September - Birchrunville, PA
  • Average sunshine days in September: 17 days

The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is June (12.8 days).

Average UV index in September
Birchrunville, PA

Average UV index in September - Birchrunville, PA
  • Average UV index in September: 4

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
Birchrunville, PA

Average cloud cover in September - Birchrunville, PA
  • Average cloud cover in September: 39

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Birchrunville, PA

Average visibility in September - Birchrunville, 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).

Birchrunville, Pennsylvania, USA

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