September weather forecast
Spring Glen, PA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Spring Glen, Pennsylvania, with an average temperature fluctuating between 73.2°F (22.9°C) and 54°F (12.2°C).

Temperature

Spring Glen experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 79.3°F (26.3°C) in August to a pleasant 73.2°F (22.9°C). Nighttime temperature experiences an average drop to a cool 54°F (12.2°C) in September.

Humidity

The average relative humidity in September in Spring Glen is 80%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.8 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of September in Spring Glen, sunrise is at 6:34 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm EDT.

Sunshine

The average sunshine in September in Spring Glen is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What is the temperature in September in Spring Glen?

September temperatures in Spring Glen, Pennsylvania, vary between a high-temperature of 73.2°F (22.9°C) and a low-temperature of 54°F (12.2°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, in July is computed to be 87.8°F (31°C).

What is the average humidity in September in Spring Glen?

In September, the average relative humidity in Spring Glen, Pennsylvania, is 80%.

What is the driest month in Spring Glen?

The month with the least rainfall in Spring Glen is September, when the rain falls for 8.8 days and typically collects 0.35" (9mm) of precipitation.

How many days does it rain in September in Spring Glen?

In Spring Glen, in September, during 8.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

When it does not snow in Spring Glen?

In Spring Glen, Pennsylvania, snow does not fall in May through October.

How many hours of daylight does Spring Glen have in September?

In September, the average day length in Spring Glen is 12h and 27min.

What time are sunrise and sunset in September in Spring Glen?

On the first day of September in Spring Glen, Pennsylvania, sunrise is at 6:34 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:49 pm EDT.

How long on average sun shines in September in Spring Glen?

In September, the average sunshine duration in Spring Glen is 8.7h.

How high is the UV index in September in Spring Glen?

In Spring Glen, the average daily maximum UV index in September 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
Spring Glen, PA

Average temperature in September - Spring Glen, PA
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

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Average pressure in September
Spring Glen, PA

Average pressure in September - Spring Glen, PA
  • Average pressure in September: 30.07"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Spring Glen, PA

Average wind speed in September - Spring Glen, PA
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in September
Spring Glen, PA

Average humidity in September - Spring Glen, PA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (77%).

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Average rainfall in September
Spring Glen, PA

Average rainfall in September - Spring Glen, PA
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in September
Spring Glen, PA

Average rainfall days in September - Spring Glen, PA
  • Average rainfall days in September: 8.8 days

The month with the highest number of rainy days is July (13.2 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in September
Spring Glen, PA

Average snowfall in September - Spring Glen, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Spring Glen, PA

Average snowfall days in September - Spring Glen, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 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
Spring Glen, PA

Average daylight in September / Average sunshine in September - Spring Glen, PA
  • Average daylight in September: 12h and 3min

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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in September
Spring Glen, PA

Average sunshine days in September - Spring Glen, PA
  • Average sunshine days in September: 18.6 days

The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (14.6 days).

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Average UV index in September
Spring Glen, PA

Average UV index in September - Spring Glen, PA
  • Average UV index in September: 4

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in September
Spring Glen, PA

Average cloud cover in September - Spring Glen, PA
  • Average cloud cover in September: 39

The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in September
Spring Glen, PA

Average visibility in September - Spring Glen, PA
  • Average visibility in September: 5mi

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

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Spring Glen, Pennsylvania, USA

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