September weather forecastWellsville, NY
September
Weather in September
September, the first month of the autumn in Wellsville, is still a pleasant month, with an average temperature fluctuating between 69.3°F (20.7°C) and 49.3°F (9.6°C).Temperature
September brings a slight decrease in the average high-temperature, shifting from a warm 75.7°F (24.3°C) in August to an agreeable 69.3°F (20.7°C). Throughout September, Wellsville witnesses a nighttime temperature average of 49.3°F (9.6°C).Humidity
The average relative humidity in September is 81%.Rainfall
The month with the least rainfall in Wellsville is September, when the rain falls for 13.3 days and typically collects 1.69" (43mm) of precipitation.Snowfall
June through September are months without snowfall in Wellsville.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:38 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Wellsville, New York, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in September interprets into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Wellsville, NY
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in September
Wellsville, 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 (29.94"Hg).
Average wind speed in September
Wellsville, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in September
Wellsville, NY
- Average humidity in September: 81%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Wellsville, NY
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in September
Wellsville, NY
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (6 days).
Average snowfall in September
Wellsville, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (10.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Wellsville, 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
Wellsville, NY
- Average daylight in September: 12h and 30min
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 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in September
Wellsville, NY
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in September
Wellsville, 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, February and December (UV index 1).
Average cloud cover in September
Wellsville, NY
- Average cloud cover in September: 46
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in September
Wellsville, NY
- Average visibility in September: 4mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
