December weather forecastSheridan, NY
December
Weather in December
The first month of the winter, December, is still a cold month in Sheridan, New York, with temperature in the range of an average low of 29.3°F (-1.5°C) and an average high of 36.5°F (2.5°C).Temperature
Transition into December marks a drop in the average high-temperature, moving from a chilly 45.5°F (7.5°C) in November to a wintry 36.5°F (2.5°C). Registering an almost steady temperature, Sheridan's nights in December see an average low of 29.3°F (-1.5°C).Humidity
In Sheridan, the average relative humidity in December is 82%.Rainfall
In Sheridan, New York, during December, the rain falls for 10.5 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Sheridan, during the entire year, the rain falls for 171.9 days and collects up to 33.43" (849mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Sheridan, in December, snow falls for 11.5 days, with typically accumulated 3.23" (82mm) of snow. Throughout the year, in Sheridan, there are 61.7 snowfall days, and 20.67" (525mm) of snow is accumulated.Daylight
The month with the shortest days in Sheridan is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:27 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:54 pm EST.
Sunshine
In December, the average sunshine is 2.7h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. 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
Sheridan, NY
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Sheridan, NY
- Average pressure in December: 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 December
Sheridan, NY
- Average wind speed in December: 13.9mph
The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in December
Sheridan, NY
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are September, October and November (77%).
Average rainfall in December
Sheridan, NY
- Average rainfall in December: 2.76"
The wettest months (with the highest rainfall) are April and May (3.23").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Sheridan, NY
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is October (19.3 days).
The month with the least rainy days is February (8 days).
Average snowfall in December
Sheridan, NY
- Average snowfall in December: 3.23"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sheridan, NY
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sheridan, NY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Sheridan, NY
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is January (6.2 days).
Average UV index in December
Sheridan, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Sheridan, NY
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Sheridan, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).





