September weather forecastFlushing, NY
September
Weather in September
September in Flushing marks the transition from the heat of summer to the coolness of fall. As temperatures start to dip, the city experiences a significant drop in average high and low temperatures. The absence of snowfall, a decrease in rainfall, and moderate sunshine hours contribute to the arrival of fall. This month witnesses consistent humidity, pressure, and visibility conditions, with a slight pick-up in wind speeds. As summer fades, Flushing residents start to prep for the approaching winter.Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 81.1°F (27.3°C) to a still moderately hot 73.9°F (23.3°C). In the month of September, the average temperature in Flushing, New York, dips to an enjoyable 63.1°F (17.3°C) during the night.Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 2.2" (56mm) of precipitation.Snowfall
In Flushing, New York, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 27min.On the first day of September in Flushing, sunrise is at 6:23 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
The average sunshine in September in Flushing is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Act with care - The need to guard against sun damage is communicated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Flushing, NY
- Average high temperature in September: 73.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
Flushing, NY
- Average pressure in September: 30.05"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
Flushing, NY
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Flushing, NY
- Average humidity in September: 73%
The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).
Average rainfall in September
Flushing, NY
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Flushing, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Flushing, NY
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Flushing, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Flushing, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Flushing, NY
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is November (18 days).
The months with the least sunshine days are June and July (11.8 days).
Average UV index in September
Flushing, NY
- Average UV index in September: 5
The months with the highest UV index are May, 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
Flushing, NY
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Flushing, 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).





