September weather forecastArdsley-on-Hudson, NY
September
Weather in September
September, the first month of the autumn in Ardsley-on-Hudson, is still a warm month, with an average temperature fluctuating between 59.5°F (15.3°C) and 75.2°F (24°C).Temperature
With the onset of September, Ardsley-on-Hudson's average high-temperature slightly adjusts, moderately receding from August's 82.6°F (28.1°C) to a still moderately hot 75.2°F (24°C). In September, the recorded average low-temperature is a refreshing 59.5°F (15.3°C).Humidity
In September, the average relative humidity in Ardsley-on-Hudson is 74%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 1.02" (26mm) of precipitation is accumulated. In Ardsley-on-Hudson, during the entire year, the rain falls for 132.4 days and collects up to 15.63" (397mm) of precipitation.Snowfall
In Ardsley-on-Hudson, snow does not fall in May through September.Daylight
The average length of the day in September in Ardsley-on-Hudson is 12h and 28min.On the first day of September, 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 September, the average sunshine is 8.8h.UV index
In Ardsley-on-Hudson, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ardsley-on-Hudson, NY
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Ardsley-on-Hudson, 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
Ardsley-on-Hudson, NY
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in September
Ardsley-on-Hudson, NY
- Average humidity in September: 74%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Ardsley-on-Hudson, NY
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in September
Ardsley-on-Hudson, NY
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Ardsley-on-Hudson, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Ardsley-on-Hudson, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.2 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
Ardsley-on-Hudson, NY
- Average daylight in September: 12h and 30min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Ardsley-on-Hudson, NY
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Ardsley-on-Hudson, 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
Ardsley-on-Hudson, 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
Ardsley-on-Hudson, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
