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 signifies a minor drop in average high-temperature, transitioning from a warm 82°F (27.8°C) in August to a still moderately hot 74.7°F (23.7°C). Briarcliff Manor's average low-temperature for the month of September records at a mild 58.3°F (14.6°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Briarcliff Manor, in September, during 12.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, in Briarcliff Manor, there are 144.6 rainfall days, and 25.51" (648mm) of precipitation is accumulated.Snowfall
In Briarcliff Manor, snow does not fall in June through September.Daylight
In September, the average length of the day in Briarcliff Manor is 12h and 28min.On the first day of September in Briarcliff Manor, sunrise is at 6:22 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:38 pm EDT.
Sunshine
In Briarcliff Manor, the average sunshine in September is 8.8h.UV index
In Briarcliff Manor, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Briarcliff Manor?
What is the average humidity in September in Briarcliff Manor?
How many days does it rain in September in Briarcliff Manor?
When it does not snow in Briarcliff Manor?
Does it snow in Briarcliff Manor in September?
What is the average length of the day in September in Briarcliff Manor?
When are sunrise and sunset in September in Briarcliff Manor?
How many hours of sunshine does Briarcliff Manor have in September?
What is the UV index reading in September in Briarcliff Manor?
Average temperature in September
Briarcliff Manor, NY
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Briarcliff Manor, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Briarcliff Manor, NY
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Briarcliff Manor, NY
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in September
Briarcliff Manor, NY
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in September
Briarcliff Manor, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Briarcliff Manor, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Briarcliff Manor, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Briarcliff Manor, NY
- 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Briarcliff Manor, NY
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (20 days).
The months with the least sunshine days are June and July (12.3 days).
Average UV index in September
Briarcliff Manor, NY
- Average UV index in September: 4
The months with the highest UV index are June, July and August (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
Briarcliff Manor, NY
- Average cloud cover in September: 35
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Briarcliff Manor, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Briarcliff Manor, New York, USA
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