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
Onset of December witnesses a reduction in the average high-temperature, falling from a cold 40.3°F (4.6°C) in November to a subzero cold 29.1°F (-1.6°C). Upper Jay records a consistent low-temperature of 18.9°F (-7.3°C) during December nights.Humidity
The average relative humidity in December is 86%.Rainfall
In Upper Jay, in December, it is raining for 10.9 days, with typically 2.4" (61mm) of accumulated precipitation. In Upper Jay, during the entire year, the rain falls for 176.2 days and collects up to 31.02" (788mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Upper Jay, during December, snow falls for 19.6 days and regularly aggregates up to 8.5" (216mm) of snow. In Upper Jay, New York, during the entire year, snow falls for 104.5 days and aggregates up to 55.87" (1419mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December in Upper Jay, sunrise is at 7:11 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:25 pm EST.
Sunshine
The average sunshine in December in Upper Jay is 3.4h.UV index
The months with the lowest UV index are January, March and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days 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?
What time are sunrise and sunset in December?
How many hours of sunshine does Upper Jay have in December?
When is the lowest UV index?
What is the UV index intensity in December in Upper Jay?
Average temperature in December
Upper Jay, NY
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 18.9°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Upper Jay, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Upper Jay, NY
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Upper Jay, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Upper Jay, NY
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Upper Jay, NY
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in December
Upper Jay, NY
- Average snowfall in December: 8.5"
The month with the highest snowfall is February (12.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Upper Jay, NY
- Average snowfall days in December: 19.6 days
The months with the highest number of snowfall days are January and February (21.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Upper Jay, NY
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in December
Upper Jay, NY
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.6 days).
Average UV index in December
Upper Jay, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in December
Upper Jay, NY
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Upper Jay, NY
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Upper Jay, New York, USA
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