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's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 77.4°F (25.2°C) in August to a pleasant 70.7°F (21.5°C). Throughout September, a steady low-temperature average of 50.2°F (10.1°C) is noted.Humidity
In Langdon, the average relative humidity in September is 81%.Rainfall
In September, the rain falls for 12.5 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 155.2 rainfall days, and 24.45" (621mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:29 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the average maximum UV index of 3 translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in Langdon in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Langdon have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Langdon have in September?
What is the UV index intensity in September?
Average temperature in September
Langdon, NY
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in September: 50.2°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in September
Langdon, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Langdon, NY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Langdon, NY
- Average humidity in September: 81%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June and July (79%).
Average rainfall in September
Langdon, NY
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in September
Langdon, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.5 days).
The months with the least rainy days are January and February (7 days).
Average snowfall in September
Langdon, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Langdon, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Langdon, NY
- 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in September
Langdon, NY
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in September
Langdon, NY
- 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, November and December (UV index 1).
Average cloud cover in September
Langdon, NY
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in September
Langdon, NY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Langdon, New York, USA
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