December weather forecastNew Windsor, NY
December
Weather in December
December, the first month of the winter in New Windsor, is still a cold month, with an average temperature fluctuating between 38.5°F (3.6°C) and 26.8°F (-2.9°C).Temperature
A shift in New Windsor's weather is observed as November turns into December, with the average high temperature reducing from a chilly 48.4°F (9.1°C) to a cold 38.5°F (3.6°C). The mean low-temperature during December nights is a freezing cold 26.8°F (-2.9°C).Humidity
February, October and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In December, in New Windsor, the rain falls for 8.7 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In New Windsor, during the entire year, the rain falls for 135.6 days and collects up to 25.39" (645mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In New Windsor, in December, snow falls for 4.8 days, with typically accumulated 3.03" (77mm) of snow. In New Windsor, during the entire year, snow falls for 27.2 days and aggregates up to 17.2" (437mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:36 pm EST.
Sunshine
In December, the average sunshine is 4.6h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
New Windsor, NY
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
New Windsor, 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
New Windsor, NY
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
New Windsor, NY
- Average humidity in December: 81%
The months with the highest relative humidity are February, October and December (81%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
New Windsor, NY
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is October (2.64").
The driest months (with the least rainfall) are January and September (1.54").
Average rainfall days in December
New Windsor, NY
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
New Windsor, NY
- Average snowfall in December: 3.03"
The month with the highest snowfall is January (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
New Windsor, NY
- Average snowfall days in December: 4.8 days
The month with the highest number of snowfall days is February (6.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
New Windsor, NY
- Average daylight in December: 9h and 12min
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 36min
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 18min).
Average sunshine days in December
New Windsor, NY
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is January (20.6 days).
The months with the least sunshine days are May and June (13.5 days).
Average UV index in December
New Windsor, 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
New Windsor, NY
- Average cloud cover in December: 51
The months with the most cloud cover are February, March and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
New Windsor, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
