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
In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 80.2°F (26.8°C) in August to a pleasant 73°F (22.8°C). Langdondale experiences a mean temperature of 53.1°F (11.7°C) during September nights.Humidity
The average relative humidity in September is 79%.Rainfall
In Langdondale, in September, it is raining for 12.5 days, with typically 1.38" (35mm) of accumulated precipitation. Throughout the year, there are 146.6 rainfall days, and 19.84" (504mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Langdondale, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:44 pm. On the last day of September, in Langdondale, sunrise is at 7:09 am and sunset at 6:56 pm EDT.
Sunshine
In September, the average sunshine in Langdondale is 8.5h.UV index
The average daily maximum UV index in September in Langdondale, Pennsylvania, is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Langdondale?
What is the average humidity in September in Langdondale?
How much does it rain in Langdondale in September?
When it does not snow in Langdondale?
Does it snow in Langdondale in September?
What is the average length of the day in September in Langdondale?
When is the sunrise / sunset in September in Langdondale?
How many hours of sunshine does Langdondale have in September?
What is the UV index intensity in September in Langdondale?
Average temperature in September
Langdondale, PA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Langdondale, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Langdondale, PA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Langdondale, PA
- Average humidity in September: 79%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in September
Langdondale, PA
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is November (1.18").
Average rainfall days in September
Langdondale, PA
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Langdondale, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Langdondale, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.9 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
Langdondale, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Langdondale, PA
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (11 days).
Average UV index in September
Langdondale, PA
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Langdondale, PA
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Langdondale, PA
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Langdondale, Pennsylvania, USA
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