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 witnesses a gentle descent in average high-temperature, descending from August's moderately hot 76.8°F (24.9°C) to a pleasant 69.6°F (20.9°C). In Cliff Haven, an average nighttime temperature of 50.5°F (10.3°C) is expected during September.Humidity
In Cliff Haven, the average relative humidity in September is 77%.Rainfall
In Cliff Haven, in September, it is raining for 12.5 days, with typically 1.77" (45mm) of accumulated precipitation. In Cliff Haven, during the entire year, the rain falls for 162.6 days and collects up to 27.6" (701mm) of precipitation.Snowfall
June through September are months without snowfall in Cliff Haven.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:35 pm EDT.
Sunshine
In Cliff Haven, the average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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 many days does it rain in September?
When it does not snow in Cliff Haven?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Cliff Haven have in September?
How high is the UV index in September?
Average temperature in September
Cliff Haven, NY
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
Cliff Haven, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Cliff Haven, NY
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Cliff Haven, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Cliff Haven, NY
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in September
Cliff Haven, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Cliff Haven, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cliff Haven, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cliff Haven, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Cliff Haven, NY
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in September
Cliff Haven, 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 and December (UV index 1).
Average cloud cover in September
Cliff Haven, NY
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in September
Cliff Haven, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Cliff Haven, New York, USA
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