September weather forecast
Lewis Corner, PA

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Weather in September

September, the first month of the autumn in Lewis Corner, is still a pleasant month, with an average temperature varying between 69.6°F (20.9°C) and 49.5°F (9.7°C).

Temperature

During the shift to September, a minor reduction in average high-temperature is observed, shifting from a moderately hot 76.6°F (24.8°C) in August to an agreeable 69.6°F (20.9°C). Nighttime temperature in Lewis Corner experiences an average drop to a chilly 49.5°F (9.7°C) in September.

Humidity

The average relative humidity in September in Lewis Corner is 81%.

Rainfall

In Lewis Corner, Pennsylvania, in September, during 14.4 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Lewis Corner, during the entire year, the rain falls for 168.4 days and collects up to 31.57" (802mm) of precipitation.

Snowfall

In Lewis Corner, snow does not fall in June through September.

Daylight

In Lewis Corner, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:44 pm. On the last day of September, in Lewis Corner, sunrise is at 7:08 am and sunset at 6:54 pm EDT.

Sunshine

The average sunshine in September is 8.1h.

UV index

The average daily maximum UV index in September in Lewis Corner is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 3 in September leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What is the temperature in September in Lewis Corner?

In September, the average high-temperature and low-temperature in Lewis Corner are 69.6°F (20.9°C) and 49.5°F (9.7°C) respectively.

What is the average humidity in September in Lewis Corner?

In September, the average relative humidity is 81%.

How much does it rain in Lewis Corner in September?

In Lewis Corner, Pennsylvania, in September, it is raining for 14.4 days, with typically 2.24" (57mm) of accumulated precipitation.

When it does not snow in Lewis Corner?

June through September are months without snowfall in Lewis Corner.

Does it snow in Lewis Corner in September?

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

How many hours of daylight does Lewis Corner have in September?

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

When are sunrise and sunset in September in Lewis Corner?

On the first day of September in Lewis Corner, sunrise is at 6:38 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm EDT.

How long on average sun shines in September in Lewis Corner?

In Lewis Corner, the average sunshine duration in September is 8.1h.

What is the UV index reading in September in Lewis Corner?

In September, the average daily maximum UV index in Lewis Corner, Pennsylvania, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Lewis Corner, PA

Average temperature in September - Lewis Corner, PA
  • Average high temperature in September: 69.6°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

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Average pressure in September
Lewis Corner, PA

Average pressure in September - Lewis Corner, 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
Lewis Corner, PA

Average wind speed in September - Lewis Corner, PA
  • Average wind speed in September: 6.1mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in September
Lewis Corner, PA

Average humidity in September - Lewis Corner, PA
  • Average humidity in September: 81%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June and July (78%).

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Average rainfall in September
Lewis Corner, PA

Average rainfall in September - Lewis Corner, PA
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is August (2.09").

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Average rainfall days in September
Lewis Corner, PA

Average rainfall days in September - Lewis Corner, PA
  • Average rainfall days in September: 14.4 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in September
Lewis Corner, PA

Average snowfall in September - Lewis Corner, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (12.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Lewis Corner, PA

Average snowfall days in September - Lewis Corner, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (21.5 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
Lewis Corner, PA

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 1min

The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).

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Average sunshine days in September
Lewis Corner, PA

Average sunshine days in September - Lewis Corner, PA
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.7 days).

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Average UV index in September
Lewis Corner, PA

Average UV index in September - Lewis Corner, PA
  • Average UV index in September: 3

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

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Average cloud cover in September
Lewis Corner, PA

Average cloud cover in September - Lewis Corner, PA
  • Average cloud cover in September: 46

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 42).

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Average visibility in September
Lewis Corner, PA

Average visibility in September - Lewis Corner, PA
  • Average visibility in September: 4mi

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

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Lewis Corner, Pennsylvania, USA

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