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
The transition into September subtly indicates a reduction in the average high-temperature, down to a pleasant 70.7°F (21.5°C) from August's warm 77.5°F (25.3°C). An average low-temperature of 50.4°F (10.2°C) marks the month of September.Humidity
In Big Flats, the average relative humidity in September is 80%.Rainfall
In Big Flats, during September, the rain falls for 13.6 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Big Flats, during the entire year, the rain falls for 172.7 days and collects up to 29.57" (751mm) of precipitation.Snowfall
In Big Flats, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:33 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Big Flats, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during September translates into the following directions:
Take precautions - Protection against sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit 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 are the temperatures in September?
What is the average humidity in September in Big Flats?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Big Flats have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Big Flats have in September?
What is the UV index intensity in September?
Average temperature in September
Big Flats, NY
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in September: 50.4°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in September
Big Flats, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Big Flats, NY
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Big Flats, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May, June and July (78%).
Average rainfall in September
Big Flats, NY
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is April (3.07").
The driest months (with the least rainfall) are January and November (1.89").
Average rainfall days in September
Big Flats, NY
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Big Flats, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (8.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Big Flats, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Big Flats, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in September
Big Flats, NY
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in September
Big Flats, 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
Big Flats, NY
- Average cloud cover in September: 40
The months with the most cloud cover are January and February (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in September
Big Flats, NY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Big Flats, New York, USA
Weather forecast for your location
2. Allow the app to use your location