Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Cornwall-on-Hudson in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 48.7°F (9.3°C) in November to a cold 39°F (3.9°C). During the month of December, an average low-temperature of 27.7°F (-2.4°C) is recorded in Cornwall-on-Hudson.Humidity
February, October and December, with an average relative humidity of 80%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 10 days and accumulates 3.23" (82mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Cornwall-on-Hudson, during December, snow falls for 5.1 days and regularly aggregates up to 2.8" (71mm) of snow. Throughout the year, there are 27.3 snowfall days, and 14.45" (367mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:03 am and sunset at 4:27 pm. On the last day of December, in Cornwall-on-Hudson, sunrise is at 7:22 am and sunset at 4:36 pm EST.
Sunshine
The average sunshine in December is 4.7h.UV index
The months with the lowest UV index in Cornwall-on-Hudson are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Cornwall-on-Hudson?
What is the most humid month in Cornwall-on-Hudson?
What is the average humidity in December in Cornwall-on-Hudson?
What is the rainiest month in Cornwall-on-Hudson?
How much does it rain in Cornwall-on-Hudson in December?
How much does it snow in Cornwall-on-Hudson in December?
What is the month with the shortest days in Cornwall-on-Hudson?
What is the average length of the day in December in Cornwall-on-Hudson?
When are sunrise and sunset in December in Cornwall-on-Hudson?
How many hours of sunshine does Cornwall-on-Hudson have in December?
What are the months with the lowest UV index in Cornwall-on-Hudson?
What is the UV index reading in December in Cornwall-on-Hudson?
Average temperature in December
Cornwall-on-Hudson, NY
- Average high temperature in December: 39°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 December: 27.7°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 December
Cornwall-on-Hudson, NY
- Average pressure in December: 30.07"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 December
Cornwall-on-Hudson, NY
- Average wind speed in December: 6.3mph
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 December
Cornwall-on-Hudson, NY
- Average humidity in December: 80%
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 December
Cornwall-on-Hudson, NY
- Average rainfall in December: 3.23"
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 December
Cornwall-on-Hudson, NY
- Average rainfall days in December: 10 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 December
Cornwall-on-Hudson, NY
- Average snowfall in December: 2.8"
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 December
Cornwall-on-Hudson, NY
- Average snowfall days in December: 5.1 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 December /
Average sunshine in December
Cornwall-on-Hudson, NY
- Average daylight in December: 9h and 1min
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 December: 4h and 4min
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 December
Cornwall-on-Hudson, NY
- Average sunshine days in December: 16.5 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 December
Cornwall-on-Hudson, NY
- Average UV index in December: 2
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 December
Cornwall-on-Hudson, NY
- Average cloud cover in December: 49
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 December
Cornwall-on-Hudson, NY
- Average visibility in December: 6mi
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
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