September weather forecast
Mountain Top, PA

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Weather in September

September, the first month of the autumn in Mountain Top, is still a pleasant month, with an average temperature varying between 51.6°F (10.9°C) and 71.4°F (21.9°C).

Temperature

The transition into September involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 78.3°F (25.7°C) in August to a pleasant 71.4°F (21.9°C). Mountain Top records an average low of 51.6°F (10.9°C) throughout the nights in September.

Humidity

The average relative humidity in September is 80%.

Rainfall

The month with the least rainfall in Mountain Top, Pennsylvania, is September, when the rain falls for 9.9 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

In Mountain Top, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:46 pm EDT.

Sunshine

The average sunshine in September in Mountain Top, Pennsylvania, is 8.6h.

UV index

The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 3 in September translates into this advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
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Frequently asked questions

What is the usual temperature for Mountain Top in September?

The high-temperature in Mountain Top during September is 71.4°F (21.9°C) and the low-temperature is 51.6°F (10.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is evaluated at 86°F (30°C).

What is the average humidity in September in Mountain Top?

In September, the average relative humidity in Mountain Top is 80%.

What is the driest month in Mountain Top?

September is the month with the least rainfall in Mountain Top, Pennsylvania. Rain falls for 9.9 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in September in Mountain Top?

In Mountain Top, during September, the rain falls for 9.9 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Mountain Top?

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

Does it snow in Mountain Top in September?

In Mountain Top, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Mountain Top?

In Mountain Top, Pennsylvania, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September in Mountain Top?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:35 pm. On the last day of the month, in Mountain Top, Pennsylvania, sunrise is at 6:59 am and sunset at 6:46 pm EDT.

How many hours of sunshine does Mountain Top have in September?

The average sunshine duration in September in Mountain Top is 8.6h.

What is the UV index reading in September in Mountain Top?

In September, the average daily maximum UV index in Mountain Top is 3. 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
Mountain Top, PA

Average temperature in September - Mountain Top, PA
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in September: 51.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in September
Mountain Top, PA

Average pressure in September - Mountain Top, PA
  • Average pressure in September: 30.07"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
Mountain Top, PA

Average wind speed in September - Mountain Top, PA
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Mountain Top, PA

Average humidity in September - Mountain Top, PA
  • Average humidity in September: 80%

The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in September
Mountain Top, PA

Average rainfall in September - Mountain Top, PA
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.71").

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Average rainfall days in September
Mountain Top, PA

Average rainfall days in September - Mountain Top, PA
  • Average rainfall days in September: 9.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in September
Mountain Top, PA

Average snowfall in September - Mountain Top, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Mountain Top, PA

Average snowfall days in September - Mountain Top, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.7 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
Mountain Top, PA

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 12min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

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Average sunshine days in September
Mountain Top, PA

Average sunshine days in September - Mountain Top, PA
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is February (11.6 days).

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Average UV index in September
Mountain Top, PA

Average UV index in September - Mountain Top, PA
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Mountain Top, PA

Average cloud cover in September - Mountain Top, PA
  • Average cloud cover in September: 42

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in September
Mountain Top, PA

Average visibility in September - Mountain Top, PA
  • Average visibility in September: 5mi

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

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Mountain Top, Pennsylvania, USA

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