September weather forecast
Lincoln, PA

Share

Weather in September

September, the first month of the autumn in Lincoln, is also a moderately hot month, with an average temperature fluctuating between 75.4°F (24.1°C) and 55°F (12.8°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from 81.5°F (27.5°C) in August to a still warm 75.4°F (24.1°C). September nights cool down to an average low-temperature of 55°F (12.8°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Lincoln, Pennsylvania, during September, the rain falls for 12.8 days and regularly aggregates up to 1.38" (35mm) of precipitation. Throughout the year, there are 161.9 rainfall days, and 19.29" (490mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 27min.
On the first day of the month, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:02 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 translates into these guidelines:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In Lincoln, 75.4°F (24.1°C) is the average high-temperature and 55°F (12.8°C) is the average low-temperature during September. In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in September?

In September, the rain falls for 12.8 days. Throughout September, 1.38" (35mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in Lincoln in September?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:02 pm EDT.

How many hours of sunshine does Lincoln have in September?

In September, the average sunshine duration is 8.7h.

What is the UV index reading in September?

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

Average temperature in September - Lincoln, PA
  • Average high temperature in September: 75.4°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in September: 55°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in September
Lincoln, PA

Average pressure in September - Lincoln, PA
  • Average pressure in September: 30.05"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).

Average wind speed in September
Lincoln, PA

Average wind speed in September - Lincoln, PA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
Lincoln, PA

Average humidity in September - Lincoln, PA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).

Average rainfall in September
Lincoln, PA

Average rainfall in September - Lincoln, PA
  • Average rainfall in September: 1.38"

The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.14").

Average rainfall days in September
Lincoln, PA

Average rainfall days in September - Lincoln, PA
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.1 days).

Average snowfall in September
Lincoln, PA

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

The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Lincoln, PA

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

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Lincoln, 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 24min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

Average sunshine days in September
Lincoln, PA

Average sunshine days in September - Lincoln, PA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9 days).

Average UV index in September
Lincoln, PA

Average UV index in September - Lincoln, PA
  • Average UV index in September: 4

The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in September
Lincoln, PA

Average cloud cover in September - Lincoln, PA
  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in September
Lincoln, PA

Average visibility in September - Lincoln, PA
  • Average visibility in September: 5mi

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

Lincoln, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location