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
As December arrives, Andover's weather displays a decrease in high-temperatures, transitioning from November's chilly 43.5°F (6.4°C) to a wintry 33.3°F (0.7°C). Andover's nighttime temperature in December drops to an average of 23.9°F (-4.5°C).Humidity
January, February and December, with an average relative humidity of 87%, are the most humid months.Rainfall
In Andover, in December, during 9.7 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Andover, during the entire year, the rain falls for 158 days and collects up to 23.5" (597mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Andover, New York. In December, it is snowing for 16.4 days. Throughout December, 6.5" (165mm) of snow is accumulated. In Andover, during the entire year, snow falls for 87.8 days and aggregates up to 35.83" (910mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:49 pm EST.
Sunshine
In December, the average sunshine is 2.8h.UV index
January, February 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 minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Andover?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Andover have in December?
What are the months with the lowest UV index?
How high is the UV index in December in Andover?
Average temperature in December
Andover, NY
- Average high temperature in December: 33.3°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 (27.5°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Andover, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Andover, NY
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Andover, NY
- Average humidity in December: 87%
The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Andover, NY
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Andover, NY
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Andover, NY
- Average snowfall in December: 6.5"
The month with the highest snowfall is February (7.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Andover, NY
- Average snowfall days in December: 16.4 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Andover, 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 12min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Andover, NY
- Average sunshine days in December: 7.9 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in December
Andover, 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 and December (UV index 1).
Average cloud cover in December
Andover, NY
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Andover, NY
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is January (4mi).
Andover, New York, USA
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