Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in the average high-temperature, shifting from 80.4°F (26.9°C) in August to a still moderately hot 74.3°F (23.5°C). The average low-temperature, in September, is a cool 54°F (12.2°C).Humidity
In Lenape Heights, the average relative humidity in September is 79%.Rainfall
In September, the rain falls for 14.9 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 182.9 rainfall days, and 34.88" (886mm) of precipitation is accumulated.Snowfall
In Lenape Heights, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:45 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:01 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in Lenape Heights in September?
How many hours of daylight does Lenape Heights have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Lenape Heights, PA
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 54°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Lenape Heights, 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).
Average wind speed in September
Lenape Heights, PA
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Lenape Heights, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in September
Lenape Heights, PA
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in September
Lenape Heights, PA
- Average rainfall days in September: 14.9 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in September
Lenape Heights, PA
- Average snowfall in September: 0"
The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lenape Heights, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lenape Heights, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Lenape Heights, PA
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (7 days).
Average UV index in September
Lenape Heights, PA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Lenape Heights, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Lenape Heights, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Lenape Heights, Pennsylvania, USA
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