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
In Armonk, the beginning of December is marked by a lowered average high-temperature, shifting from November's cool 50.5°F (10.3°C) to an icy 41.5°F (5.3°C). Armonk in December experiences a low-temperature average of 31.8°F (-0.1°C).Humidity
February and December, with an average relative humidity of 76%, are the most humid months in Armonk.Rainfall
December is the month with the most rainfall. Rain falls for 12 days and accumulates 3.98" (101mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In December, it is snowing for 4.7 days. Throughout December, 2.32" (59mm) of snow is accumulated. In Armonk, during the entire year, snow falls for 27.1 days and aggregates up to 13.07" (332mm) of snow.Daylight
December has the shortest days of the year in Armonk, with an average of 9h and 18min 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 7:19 am and sunset at 4:36 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Armonk are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, a regular UV index of 2 translates into these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Armonk in December?
What are the most humid months in Armonk?
What is the average humidity in December in Armonk?
What is the wettest month in Armonk?
How many days does it rain in December in Armonk?
How many days does it snow in December in Armonk?
What is the month with the shortest days in Armonk?
What is the average length of the day in December in Armonk?
What time are sunrise and sunset in December in Armonk?
How many hours of sunshine does Armonk have in December?
What are the months with the lowest UV index in Armonk?
What is the UV index intensity in December in Armonk?
Average temperature in December
Armonk, NY
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Armonk, 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
Armonk, NY
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Armonk, NY
- Average humidity in December: 76%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April and August (71%).
Average rainfall in December
Armonk, NY
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is December (3.98").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Armonk, NY
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Armonk, NY
- Average snowfall in December: 2.32"
The month with the highest snowfall is March (3.78").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Armonk, NY
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Armonk, NY
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Armonk, NY
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Armonk, NY
- Average UV index in December: 2
The months with the highest UV index are June, July 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
Armonk, NY
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Armonk, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Armonk, New York, USA
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