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 December, the average high-temperature decreases from a frosty 48.7°F (9.3°C) in November to an icy 39°F (3.9°C). Throughout the nights in December, Garrison experiences an average low-temperature of 27.7°F (-2.4°C).Humidity
February, October and December, with an average relative humidity of 80%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 10 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Garrison, during December, snow falls for 5.1 days and regularly aggregates up to 2.8" (71mm) of snow. In Garrison, during the entire year, snow falls for 27.3 days and aggregates up to 14.45" (367mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:36 pm EST.
Sunshine
In December, the average sunshine is 4.7h.UV index
The months with the lowest UV index in Garrison are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
How cold does it get in Garrison in December?
What is the most humid month in Garrison?
What is the average humidity in December in Garrison?
What is the wettest month in Garrison?
How much does it rain in Garrison in December?
How much does it snow in Garrison in December?
What is the month with the shortest days in Garrison?
How many hours of daylight does Garrison have in December?
When are sunrise and sunset in December in Garrison?
How long on average sun shines in December in Garrison?
When is the lowest UV index in Garrison?
How high is the UV index in December in Garrison?
Average temperature in December
Garrison, NY
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Garrison, 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
Garrison, NY
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Garrison, NY
- Average humidity in December: 80%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Garrison, NY
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is December (3.23").
The driest months (with the least rainfall) are January and September (1.97").
Average rainfall days in December
Garrison, NY
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in December
Garrison, NY
- Average snowfall in December: 2.8"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Garrison, NY
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garrison, NY
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Garrison, NY
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Garrison, NY
- Average UV index in December: 2
The months with the highest UV index are June 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
Garrison, NY
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Garrison, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and October (5mi).
Garrison, New York, USA
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