September weather forecastBrownville, NY
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Brownville, New York, with an average temperature varying between 69.1°F (20.6°C) and 54.1°F (12.3°C).Temperature
A mild shift in the average high-temperature occurs in September, reducing from a warm 75.6°F (24.2°C) in August to a pleasant 69.1°F (20.6°C). The mean low-temperature during September nights in Brownville is a fresh 54.1°F (12.3°C).Humidity
The months with the lowest humidity are April and September, with an average relative humidity of 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.7 days and typically collects 0.94" (24mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 6:28 am and sunset at 7:39 pm. On the last day of September, in Brownville, sunrise is at 7:01 am and sunset at 6:46 pm EDT.
Sunshine
The average sunshine in September in Brownville is 9.1h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brownville, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (76.1°F).
The month with the lowest average high temperature is January (26.6°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Brownville, 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
Brownville, NY
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Brownville, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and September (77%).
Average rainfall in September
Brownville, NY
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in September
Brownville, NY
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is October (15.5 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in September
Brownville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Brownville, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brownville, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Brownville, NY
- Average sunshine days in September: 18.7 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is January (11.1 days).
Average UV index in September
Brownville, NY
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Brownville, NY
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in September
Brownville, NY
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
