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
With December's arrival, Clarkson sees a decrease in average high-temperatures, moving from a frosty 45.7°F (7.6°C) in November to an icy 36.1°F (2.3°C). Clarkson's average temperature during the nights of December is recorded at a freezing cold 28.2°F (-2.1°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Clarkson, during December, the rain falls for 10.1 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 163.5 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Clarkson, in December, snow falls for 14.3 days, with typically accumulated 4.13" (105mm) of snow. Throughout the year, there are 67.2 snowfall days, and 21.97" (558mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:37 pm. On the last day of December, sunrise is at 7:43 am and sunset at 4:46 pm EST.
Sunshine
In December, the average sunshine is 3.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 1 in December transforms into this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much 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 long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Clarkson, NY
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 28.2°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 (20.5°F).
Average pressure in December
Clarkson, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Clarkson, NY
- Average wind speed in December: 11.5mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in December
Clarkson, NY
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (76%).
Average rainfall in December
Clarkson, NY
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Clarkson, NY
- Average rainfall days in December: 10.1 days
The months with the highest number of rainy days are August and October (17.3 days).
The month with the least rainy days is February (7.1 days).
Average snowfall in December
Clarkson, NY
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clarkson, NY
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Clarkson, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in December
Clarkson, NY
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (6.9 days).
Average UV index in December
Clarkson, 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
Clarkson, NY
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Clarkson, NY
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Clarkson, New York, USA
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