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
The average high-temperature drops in December, from November's frosty 45.1°F (7.3°C) to a cold 34.9°F (1.6°C). An average nighttime temperature of 24.1°F (-4.4°C) is observed in Jefferson Heights during December.Humidity
February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Jefferson Heights, in December, during 13.5 rainfall days, 2.91" (74mm) of precipitation is typically accumulated. Throughout the year, there are 174.8 rainfall days, and 33.46" (850mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Jefferson Heights, during December, snow falls for 13.6 days and regularly aggregates up to 9.13" (232mm) of snow. In Jefferson Heights, during the entire year, snow falls for 70.1 days and aggregates up to 51.18" (1300mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Jefferson Heights.On the first day of December, sunrise is at 7:05 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:33 pm EST.
Sunshine
In December, the average sunshine is 4.9h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. 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 December?
What is the most humid month in Jefferson Heights?
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?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Jefferson Heights, NY
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Jefferson Heights, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Jefferson Heights, NY
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Jefferson Heights, NY
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June and July (76%).
Average rainfall in December
Jefferson Heights, NY
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Jefferson Heights, NY
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (10 days).
Average snowfall in December
Jefferson Heights, NY
- Average snowfall in December: 9.13"
The month with the highest snowfall is February (11.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jefferson Heights, NY
- Average snowfall days in December: 13.6 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jefferson Heights, 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: 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 18min).
Average sunshine days in December
Jefferson Heights, NY
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (9.8 days).
Average UV index in December
Jefferson Heights, NY
- Average UV index in December: 2
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, March, October, November and December (UV index 2).
Average cloud cover in December
Jefferson Heights, NY
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Jefferson Heights, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Jefferson Heights, New York, USA
Weather forecast for your location
2. Allow the app to use your location