September weather forecastCape Vincent, NY
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Cape Vincent, New York, with an average temperature varying between 68.9°F (20.5°C) and 54°F (12.2°C).Temperature
As September begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 75.7°F (24.3°C) in August to a pleasant 68.9°F (20.5°C). Cape Vincent encounters an average low-temperature of 54°F (12.2°C) during September nights.Humidity
The average relative humidity in September is 77%.Rainfall
September is the month with the least rainfall in Cape Vincent. Rain falls for 12.5 days and accumulates 1.5" (38mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:40 pm. On the last day of September, in Cape Vincent, sunrise is at 7:02 am and sunset at 6:47 pm EDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
The average daily maximum UV index in September in Cape Vincent is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 3 during September translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cape Vincent, NY
- Average high temperature in September: 68.9°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 (25.7°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 (14.5°F).
Average pressure in September
Cape Vincent, 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
Cape Vincent, NY
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in September
Cape Vincent, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (76%).
Average rainfall in September
Cape Vincent, NY
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in September
Cape Vincent, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is October (17.1 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in September
Cape Vincent, NY
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cape Vincent, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cape Vincent, 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: 8h and 54min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in September
Cape Vincent, NY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is January (7.9 days).
Average UV index in September
Cape Vincent, 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
Cape Vincent, NY
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in September
Cape Vincent, NY
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
