Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August makes way for September, Cornwall-on-Hudson's average high-temperature eases from a warm 82°F (27.8°C) to a still moderately hot 74.3°F (23.5°C). Cornwall-on-Hudson, during September, witnesses an average low-temperature of 54.9°F (12.7°C).Humidity
In September, the average relative humidity in Cornwall-on-Hudson is 78%.Rainfall
January and September are months with the least rain when the rain falls for 12.7 days and typically aggregates up to 1.97" (50mm) of rain.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Cornwall-on-Hudson is 12h and 28min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In Cornwall-on-Hudson, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 4 in September translates into this advice:
Exercise prevention - Warding off sunburn is urged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
What is the temperature in September in Cornwall-on-Hudson?
What is the average humidity in September in Cornwall-on-Hudson?
What is the driest month in Cornwall-on-Hudson?
How many days does it rain in September in Cornwall-on-Hudson?
When it does not snow in Cornwall-on-Hudson?
Does it snow in Cornwall-on-Hudson in September?
How many hours of daylight does Cornwall-on-Hudson have in September?
When are sunrise and sunset in September in Cornwall-on-Hudson?
How many hours of sunshine does Cornwall-on-Hudson have in September?
What is the UV index intensity in September in Cornwall-on-Hudson?
Average temperature in September
Cornwall-on-Hudson, NY
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 54.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Cornwall-on-Hudson, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cornwall-on-Hudson, NY
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in September
Cornwall-on-Hudson, NY
- Average humidity in September: 78%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Cornwall-on-Hudson, NY
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is December (3.23").
The driest months (with the least rainfall) are January and September (1.97").
Average rainfall days in September
Cornwall-on-Hudson, NY
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Cornwall-on-Hudson, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cornwall-on-Hudson, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cornwall-on-Hudson, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in September
Cornwall-on-Hudson, NY
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Cornwall-on-Hudson, NY
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Cornwall-on-Hudson, NY
- Average cloud cover in September: 39
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in September
Cornwall-on-Hudson, NY
- Average visibility in September: 5mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Cornwall-on-Hudson, New York, USA
Weather forecast for your location
2. Allow the app to use your location
