September weather forecastDelphi Falls, NY
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Delphi Falls, New York, with an average temperature fluctuating between 69.6°F (20.9°C) and 50.9°F (10.5°C).Temperature
September's arrival subtly correlates with a reduction in the average high-temperature, down from a warm 75.7°F (24.3°C) in August to an agreeable 69.6°F (20.9°C). Throughout the month of September, Delphi Falls witnesses an average temperature of 50.9°F (10.5°C).Humidity
In Delphi Falls, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 8.7 days and accumulates 0.63" (16mm) of precipitation.Snowfall
In Delphi Falls, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:46 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Delphi Falls, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delphi Falls, NY
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in September
Delphi Falls, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Delphi Falls, NY
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in September
Delphi Falls, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in September
Delphi Falls, NY
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is May (1.18").
The driest month (with the least rainfall) is September (0.63").
Average rainfall days in September
Delphi Falls, NY
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Delphi Falls, NY
- Average snowfall in September: 0"
The month with the highest snowfall is November (2.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delphi Falls, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delphi Falls, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
Delphi Falls, NY
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (12.9 days).
Average UV index in September
Delphi Falls, 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
Delphi Falls, NY
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in September
Delphi Falls, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, May, October, November and December (6mi).
The months with the lowest visibility are January, February, March, June, July, August and September (5mi).
