September weather forecast
Lee, PA

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Weather in September

The first month of the autumn, September, is still a pleasant month in Lee, Pennsylvania, with an average temperature ranging between max 71.4°F (21.9°C) and min 51.6°F (10.9°C).

Temperature

The advent of September brings a slight shift in average high-temperature, moving from a moderately hot 78.3°F (25.7°C) in August to a pleasant 71.4°F (21.9°C). Lee experiences an average nighttime temperature of 51.6°F (10.9°C) in the month of September.

Humidity

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

Rainfall

January and September are months with the least rain when the rain falls for 13.2 days and typically aggregates up to 2.09" (53mm) of rain.

Snowfall

In Lee, 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 September, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

Sunshine

The average sunshine in September in Lee is 8.5h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Lee?

Lee in September has an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 51.6°F (10.9°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in July is calculated to be 86°F (30°C).

What is the average humidity in September in Lee?

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

What is the driest month in Lee?

The months with the least rainfall in Lee are January and September Rain falls for 13.2 days and accumulates 2.09" (53mm) of rain.

How much does it rain in Lee in September?

In Lee, in September, during 13.2 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

When it does not snow in Lee?

In Lee, snow does not fall in June through September.

Does it snow in Lee in September?

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

How many hours of daylight does Lee have in September?

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

When is the sunrise / sunset in September in Lee?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm EDT.

How long on average sun shines in September in Lee?

In Lee, the average sunshine duration in September is 8.5h.

What is the UV index intensity in September in Lee?

The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents 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
Lee, PA

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

The warmest month (with the highest average high temperature) is July (81°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°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in September
Lee, PA

Average pressure in September - Lee, 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).

Average wind speed in September
Lee, PA

Average wind speed in September - Lee, PA
  • Average wind speed in September: 5.7mph

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 (5.1mph).

Average humidity in September
Lee, PA

Average humidity in September - Lee, PA
  • Average humidity in September: 80%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).

Average rainfall in September
Lee, PA

Average rainfall in September - Lee, PA
  • Average rainfall in September: 2.09"

The wettest month (with the highest rainfall) is July (3.23").
The driest months (with the least rainfall) are January and September (2.09").

Average rainfall days in September
Lee, PA

Average rainfall days in September - Lee, PA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in September
Lee, PA

Average snowfall in September - Lee, PA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Lee, PA

Average snowfall days in September - Lee, PA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Lee, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).

Average sunshine days in September
Lee, PA

Average sunshine days in September - Lee, PA
  • Average sunshine days in September: 14.4 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.1 days).

Average UV index in September
Lee, PA

Average UV index in September - Lee, 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).

Average cloud cover in September
Lee, PA

Average cloud cover in September - Lee, 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 37).

Average visibility in September
Lee, PA

Average visibility in September - Lee, 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).

Lee, Pennsylvania, USA

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