September weather forecastSloatsburg, NY
September
Weather in September
September, the first month of the autumn in Sloatsburg, is still a warm month, with an average temperature fluctuating between 56.8°F (13.8°C) and 74.8°F (23.8°C).Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a moderately hot 82.4°F (28°C) in August to a still warm 74.8°F (23.8°C). Sloatsburg reports a consistent average low-temperature of 56.8°F (13.8°C) throughout September nights.Humidity
The average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 11 days and accumulates 1.34" (34mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:53 am and sunset at 6:39 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sloatsburg, NY
- Average high temperature in September: 74.8°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 (34.3°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in September
Sloatsburg, 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
Sloatsburg, NY
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Sloatsburg, NY
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Sloatsburg, NY
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is December (2.68").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in September
Sloatsburg, NY
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Sloatsburg, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Sloatsburg, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sloatsburg, 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 42min
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 30min).
Average sunshine days in September
Sloatsburg, NY
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Sloatsburg, 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
Sloatsburg, NY
- Average cloud cover in September: 38
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Sloatsburg, NY
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).





