September weather forecast
Spinnerstown, PA

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Weather in September

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

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from 82.2°F (27.9°C) in August to a still moderately hot 75.7°F (24.3°C). In the month of September, Spinnerstown's average low-temperature falls to a refreshing 56.7°F (13.7°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

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

Snowfall

In Spinnerstown, Pennsylvania, snow does not fall in June through September.

Daylight

In Spinnerstown, the average length of the day in September is 12h and 27min.
On the first day of September in Spinnerstown, sunrise is at 6:29 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 Spinnerstown is 8.7h.

UV index

In Spinnerstown, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Frequently asked questions

What is the temperature in September in Spinnerstown?

In September, the average high-temperature and low-temperature are 75.7°F (24.3°C) and 56.7°F (13.7°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is evaluated at 87.8°F (31°C).

What is the average humidity in September in Spinnerstown?

In September, the average relative humidity is 78%.

What is the driest month in Spinnerstown?

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

How much does it rain in Spinnerstown in September?

In September, in Spinnerstown, the rain falls for 12 days. Throughout September, 1.65" (42mm) of precipitation is accumulated.

When it does not snow in Spinnerstown?

June through September are months without snowfall.

Does it snow in Spinnerstown in September?

In Spinnerstown, Pennsylvania, in September, it doesn't snow. In October, it regularly snows.

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

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

When are sunrise and sunset in September in Spinnerstown?

In September, on the first day of the month, sunrise is at 6:29 am and sunset at 7:33 pm. On the last day of the month, in Spinnerstown, Pennsylvania, sunrise is at 6:57 am and sunset at 6:45 pm EDT.

How long on average sun shines in September in Spinnerstown?

The average sunshine duration in September in Spinnerstown, Pennsylvania, is 8.7h.

How high is the UV index in September in Spinnerstown?

In September, the average daily maximum UV index in Spinnerstown, Pennsylvania, is 4. A UV Index of 3 to 5 symbolizes 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
Spinnerstown, PA

Average temperature in September - Spinnerstown, 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).

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Average pressure in September
Spinnerstown, PA

Average pressure in September - Spinnerstown, 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
Spinnerstown, PA

Average wind speed in September - Spinnerstown, 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
Spinnerstown, PA

Average humidity in September - Spinnerstown, 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
Spinnerstown, PA

Average rainfall in September - Spinnerstown, 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").

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Average rainfall days in September
Spinnerstown, PA

Average rainfall days in September - Spinnerstown, 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).

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Average snowfall in September
Spinnerstown, PA

Average snowfall in September - Spinnerstown, 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").

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Average snowfall days in September
Spinnerstown, PA

Average snowfall days in September - Spinnerstown, 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).

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

Average daylight in September / Average sunshine in September - Spinnerstown, 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).

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Average sunshine days in September
Spinnerstown, PA

Average sunshine days in September - Spinnerstown, 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).

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Average UV index in September
Spinnerstown, PA

Average UV index in September - Spinnerstown, 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).

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Average cloud cover in September
Spinnerstown, PA

Average cloud cover in September - Spinnerstown, 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).

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Average visibility in September
Spinnerstown, PA

Average visibility in September - Spinnerstown, 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).

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Spinnerstown, Pennsylvania, USA

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