December weather forecastHeritage Hills, NY
December
Weather in December
The first month of the winter, December, is still a cold month in Heritage Hills, New York, with an average temperature fluctuating between 39°F (3.9°C) and 28.6°F (-1.9°C).Temperature
December's onset corresponds with a shift in the average high-temperature, moving from a chilly 48.6°F (9.2°C) in November to a wintry 39°F (3.9°C). Throughout the month of December, Heritage Hills observes an average nighttime temperature of 28.6°F (-1.9°C).Humidity
February, October and December, with an average relative humidity of 79%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 10.5 days and typically aggregates up to 2.99" (76mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Heritage Hills, in December, during 5.3 snowfall days, 2.83" (72mm) of snow is typically accumulated. In Heritage Hills, during the entire year, snow falls for 31 days and aggregates up to 16.22" (412mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:01 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:35 pm EST.
Sunshine
In December, the average sunshine is 4.7h.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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Heritage Hills, NY
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Heritage Hills, 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
Heritage Hills, NY
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Heritage Hills, NY
- Average humidity in December: 79%
The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Heritage Hills, NY
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in December
Heritage Hills, NY
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (7 days).
Average snowfall in December
Heritage Hills, NY
- Average snowfall in December: 2.83"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Heritage Hills, NY
- Average snowfall days in December: 5.3 days
The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heritage Hills, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Heritage Hills, NY
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (18.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
Heritage Hills, 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
Heritage Hills, NY
- Average cloud cover in December: 49
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Heritage Hills, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and June (5mi).
