September weather forecast
Green Lane, PA

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Weather in September

September, the first month of the autumn in Green Lane, is also a moderately hot month, with an average temperature varying between 75.4°F (24.1°C) and 57.2°F (14°C).

Temperature

Green Lane in September undergoes a slight reduction in the average high-temperature, shifting from August's moderately hot 81.9°F (27.7°C) to a still warm 75.4°F (24.1°C). Green Lane observes an average low-temperature of 57.2°F (14°C) during September.

Humidity

The average relative humidity in September in Green Lane, Pennsylvania, is 78%.

Rainfall

In Green Lane, during September, the rain falls for 11 days and regularly aggregates up to 0.91" (23mm) of precipitation. In Green Lane, during the entire year, the rain falls for 128.6 days and collects up to 15.16" (385mm) of precipitation.

Snowfall

In Green Lane, snow does not fall in June through October.

Daylight

In Green Lane, Pennsylvania, the average length of the day in September is 12h and 27min.
On the first day of September in Green Lane, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm EDT.

Sunshine

In September, the average sunshine in Green Lane is 8.7h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the average September temperature in Green Lane?

September temperatures in Green Lane vary between a high-temperature of 75.4°F (24.1°C) and a low-temperature of 57.2°F (14°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in August is estimated at 87.8°F (31°C).

What is the average humidity in September in Green Lane?

In Green Lane, the average relative humidity in September is 78%.

How many days does it rain in September in Green Lane?

In Green Lane, during September, the rain falls for 11 days and regularly aggregates up to 0.91" (23mm) of precipitation.

When it does not snow in Green Lane?

In Green Lane, Pennsylvania, snow does not fall in June through October.

What is the average length of the day in September in Green Lane?

The average day length in September in Green Lane, Pennsylvania, is 12h and 27min.

What time are sunrise and sunset in September in Green Lane?

On the first day of September in Green Lane, Pennsylvania, sunrise is at 6:30 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm EDT.

How long on average sun shines in September in Green Lane?

The average sunshine duration in September is 8.7h.

How high is the UV index in September in Green Lane?

In Green Lane, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Green Lane, PA

Average temperature in September - Green Lane, PA
  • Average high temperature in September: 75.4°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 (35.2°F).

  • Average low temperature in September: 57.2°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in September
Green Lane, PA

Average pressure in September - Green Lane, 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).

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Average wind speed in September
Green Lane, PA

Average wind speed in September - Green Lane, 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).

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Average humidity in September
Green Lane, PA

Average humidity in September - Green Lane, 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%).

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Average rainfall in September
Green Lane, PA

Average rainfall in September - Green Lane, PA
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in September
Green Lane, PA

Average rainfall days in September - Green Lane, PA
  • Average rainfall days in September: 11 days

The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in September
Green Lane, PA

Average snowfall in September - Green Lane, PA
  • Average snowfall in September: 0"

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

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Average snowfall days in September
Green Lane, PA

Average snowfall days in September - Green Lane, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (5.3 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
Green Lane, PA

Average daylight in September / Average sunshine in September - Green Lane, 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).

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Average sunshine days in September
Green Lane, PA

Average sunshine days in September - Green Lane, PA
  • Average sunshine days in September: 17.1 days

The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in September
Green Lane, PA

Average UV index in September - Green Lane, 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).

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Average cloud cover in September
Green Lane, PA

Average cloud cover in September - Green Lane, PA
  • Average cloud cover in September: 39

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

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Average visibility in September
Green Lane, PA

Average visibility in September - Green Lane, 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).

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Green Lane, Pennsylvania, USA

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