September weather forecastWest Henrietta, NY
September
Weather in September
The first month of the autumn, September, is still a pleasant month in West Henrietta, New York, with an average temperature ranging between min 54°F (12.2°C) and max 71.8°F (22.1°C).Temperature
In West Henrietta, the average high-temperature in September gently drops from a moderately hot 77.9°F (25.5°C) in August to a pleasant 71.8°F (22.1°C). An average nighttime temperature of 54°F (12.2°C) is noted during the month of September.Humidity
April, May, July through September, with an average relative humidity of 77%, are the least humid months.Rainfall
In West Henrietta, in September, it is raining for 15 days, with typically 1.73" (44mm) of accumulated precipitation. In West Henrietta, during the entire year, the rain falls for 168.2 days and collects up to 26.1" (663mm) of precipitation.Snowfall
In West Henrietta, snow does not fall in June through September.Daylight
In West Henrietta, the average length of the day in September is 12h and 29min.On the first day of September in West Henrietta, sunrise is at 6:35 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:53 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In West Henrietta, New York, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in September leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
West Henrietta, NY
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in September: 54°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 (18.9°F).
Average pressure in September
West Henrietta, NY
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
West Henrietta, NY
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in September
West Henrietta, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, May, July, August and September (77%).
Average rainfall in September
West Henrietta, NY
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in September
West Henrietta, NY
- Average rainfall days in September: 15 days
The months with the highest number of rainy days are July and August (18.3 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in September
West Henrietta, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Henrietta, 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
West Henrietta, NY
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 36min).
Average sunshine days in September
West Henrietta, NY
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is September (13.2 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
West Henrietta, 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
West Henrietta, NY
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
West Henrietta, 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).
