September weather forecast
State College, PA

Weather in September

September, the first month of the autumn in State College, is still a pleasant month, with an average temperature varying between 72.5°F (22.5°C) and 52.2°F (11.2°C).

Temperature

In State College, the average high-temperature in September marginally drops from a moderately hot 79.9°F (26.6°C) in August to a pleasant 72.5°F (22.5°C). The average low-temperature, in State College, is 52.2°F (11.2°C).

Humidity

In State College, the average relative humidity in September is 80%.

Rainfall

In State College, in September, during 13.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, there are 175.7 rainfall days, and 30.94" (786mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September in State College, Pennsylvania, is 12h and 27min.
On the first day of September in State College, sunrise is at 6:38 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm EDT.

Sunshine

In September, the average sunshine in State College, Pennsylvania, is 8.4h.

UV index

In State College, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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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FAQ

What is the temperature in September in State College?

In September, in State College, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 52.2°F (11.2°C). in July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in September in State College?

The average relative humidity in September in State College, Pennsylvania, is 80%.

How many days does it rain in September in State College?

In September, the rain falls for 13.8 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in State College?

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

Does it snow in State College in September?

In State College, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does State College have in September?

The average day length in September is 12h and 27min.

What time are sunrise and sunset in September in State College?

In September, on the first day of the month, sunrise is at 6:38 am and sunset at 7:44 pm. On the last day of the month, in State College, sunrise is at 7:06 am and sunset at 6:55 pm EDT.

How many hours of sunshine does State College have in September?

The average sunshine duration in September is 8.4h.

What is the UV index reading in September in State College?

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 unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
State College, PA

Average temperature in September - State College, PA
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in September: 52.2°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
State College, PA

Average pressure in September - State College, PA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in September
State College, PA

Average wind speed in September - State College, PA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
State College, PA

Average humidity in September - State College, 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 July (76%).

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Average rainfall in September
State College, PA

Average rainfall in September - State College, PA
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is November (2.01").

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Average rainfall days in September
State College, PA

Average rainfall days in September - State College, PA
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (9.8 days).

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Average snowfall in September
State College, PA

Average snowfall in September - State College, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
State College, PA

Average snowfall days in September - State College, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.3 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
State College, PA

Average daylight in September / Average sunshine in September - State College, PA
  • Average daylight in September: 12h and 27min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in September: 8h and 24min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in September
State College, PA

Average sunshine days in September - State College, PA
  • Average sunshine days in September: 13.7 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).

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Average UV index in September
State College, PA

Average UV index in September - State College, PA
  • Average UV index in September: 4

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
State College, PA

Average cloud cover in September - State College, PA
  • Average cloud cover in September: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in September
State College, PA

Average visibility in September - State College, PA
  • Average visibility in September: 5mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

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