December weather forecastDe Kalb Junction, NY
December
Weather in December
The first month of the winter, December, is still a freezing cold month in De Kalb Junction, New York, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 20.5°F (-6.4°C).Temperature
With December's arrival, De Kalb Junction's weather changes as the average high-temperature falls from an icy 42.3°F (5.7°C) in November to a freezing cold 30.4°F (-0.9°C). During December, the nighttime temperature averages of 20.5°F (-6.4°C).Humidity
In De Kalb Junction, the average relative humidity in December is 86%.Rainfall
In De Kalb Junction, New York, during December, the rain falls for 4.6 days and regularly aggregates up to 0.47" (12mm) of precipitation. In De Kalb Junction, during the entire year, the rain falls for 85.8 days and collects up to 6.46" (164mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In De Kalb Junction, during December, snow falls for 7.7 days and regularly aggregates up to 0.87" (22mm) of snow. In De Kalb Junction, New York, during the entire year, snow falls for 42.4 days and aggregates up to 5.24" (133mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:18 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:31 pm EST.
Sunshine
In De Kalb Junction, the average sunshine in December is 2.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. When the Sun is at its strongest around midday, find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
De Kalb Junction, NY
- Average high temperature in December: 30.4°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 (24.1°F).
- Average low temperature in December: 20.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
De Kalb Junction, NY
- Average pressure in December: 30.04"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
De Kalb Junction, NY
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
De Kalb Junction, NY
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
De Kalb Junction, NY
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is October (0.79").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
De Kalb Junction, NY
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
De Kalb Junction, NY
- Average snowfall in December: 0.87"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
De Kalb Junction, NY
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
De Kalb Junction, NY
- Average daylight in December: 8h and 54min
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: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).
Average sunshine days in December
De Kalb Junction, NY
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is July (16.5 days).
Average UV index in December
De Kalb Junction, 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 and December (UV index 1).
Average cloud cover in December
De Kalb Junction, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
De Kalb Junction, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, September, October and November (6mi).
The months with the lowest visibility are January, February, March, June, July, August and December (5mi).
