December weather forecastStewart Manor, NY
December
Weather in December
December, the first month of the winter in Stewart Manor, is still a chilly month, with an average temperature varying between 35.6°F (2°C) and 43.5°F (6.4°C).Temperature
December's arrival subtly correlates with a reduction in the average high-temperature, down from a cool 51.6°F (10.9°C) in November to a chilly 43.5°F (6.4°C). Stewart Manor sustains a near constant temperature throughout December, with nighttime averages of 35.6°F (2°C).Humidity
The average relative humidity in December is 74%.Rainfall
In Stewart Manor, New York, in December, during 11.7 rainfall days, 3.66" (93mm) of precipitation is typically accumulated. Throughout the year, in Stewart Manor, there are 158.5 rainfall days, and 36.38" (924mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Stewart Manor. In Stewart Manor, in December, during 2.7 snowfall days, 1.42" (36mm) of snow is typically accumulated. Throughout the year, in Stewart Manor, there are 15.8 snowfall days, and 5.91" (150mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Stewart Manor.On the first day of December, sunrise is at 7:00 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:37 pm EST.
Sunshine
In Stewart Manor, New York, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Stewart Manor are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stewart Manor, NY
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in December: 35.6°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
Stewart Manor, 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
Stewart Manor, NY
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in December
Stewart Manor, NY
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
Stewart Manor, NY
- Average rainfall in December: 3.66"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in December
Stewart Manor, NY
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Stewart Manor, NY
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Stewart Manor, NY
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Stewart Manor, NY
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Stewart Manor, NY
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Stewart Manor, NY
- Average UV index in December: 2
The months with the highest UV index are June, July 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
Stewart Manor, NY
- Average cloud cover in December: 47
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Stewart Manor, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
