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 is characterized by a slight reduction in average high-temperature, easing from a moderately hot 82.9°F (28.3°C) in August to a still warm 75.2°F (24°C). During September, Nyack observes a consistent average nighttime temperature of 58.5°F (14.7°C).Humidity
The average relative humidity in September in Nyack is 74%.Rainfall
In Nyack, New York, in September, it is raining for 12.5 days, with typically 2.01" (51mm) of accumulated precipitation. In Nyack, during the entire year, the rain falls for 151.8 days and collects up to 30.79" (782mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of September, in Nyack, sunrise is at 6:52 am and sunset at 6:38 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Nyack, New York, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Nyack?
What is the average humidity in September in Nyack?
How many days does it rain in September in Nyack?
When it does not snow in Nyack?
Does it snow in Nyack in September?
What is the average length of the day in September in Nyack?
When is the sunrise / sunset in September in Nyack?
How many hours of sunshine does Nyack have in September?
What is the UV index reading in September in Nyack?
Average temperature in September
Nyack, 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: 58.5°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Nyack, 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
Nyack, NY
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Nyack, 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
Nyack, NY
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in September
Nyack, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in September
Nyack, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Nyack, 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 May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Nyack, 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 4min
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 36min).
Average sunshine days in September
Nyack, NY
- Average sunshine days in September: 14.9 days
The months with the most sunshine days are January and November (20 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in September
Nyack, 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
Nyack, NY
- Average cloud cover in September: 36
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 32).
Average visibility in September
Nyack, 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).
Nyack, New York, USA
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