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
A change in temperatures is noted as November gives way to December, with average highs reducing from a chilly 43.2°F (6.2°C) to a wintry 32.9°F (0.5°C). In December, the average low-temperature is a subzero cold 23.2°F (-4.9°C).Humidity
February and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In December, the rain falls for 9.5 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 156.8 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Mount Upton, in December, during 14.7 snowfall days, 5" (127mm) of snow is typically accumulated. In Mount Upton, during the entire year, snow falls for 78.3 days and aggregates up to 27.87" (708mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:30 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 2.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December leads to these instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the most humid month?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Mount Upton have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Mount Upton, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Mount Upton, 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
Mount Upton, NY
- Average wind speed in December: 9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Mount Upton, NY
- Average humidity in December: 87%
The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is July (79%).
Average rainfall in December
Mount Upton, NY
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is August (2.68").
The driest months (with the least rainfall) are January and February (1.61").
Average rainfall days in December
Mount Upton, NY
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Mount Upton, NY
- Average snowfall in December: 5"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mount Upton, NY
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Upton, NY
- Average daylight in December: 9h and 1min
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 4min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in December
Mount Upton, NY
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Mount Upton, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Mount Upton, NY
- Average cloud cover in December: 72
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Mount Upton, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Mount Upton, New York, USA
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