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 shift from November to December in Edison involves a decrease in the average high-temperature, dropping from a cool 52°F (11.1°C) to a cold 42.6°F (5.9°C). Edison's average low-temperature for the month of December records at a still wintry 32.5°F (0.3°C).Humidity
February, October and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Edison, New Jersey, in December, it is raining for 10.2 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 149.9 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Edison, during December, snow falls for 3.2 days and regularly aggregates up to 0.94" (24mm) of snow. In Edison, New Jersey, during the entire year, snow falls for 18.6 days and aggregates up to 7.64" (194mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:02 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:41 pm EST.
Sunshine
In Edison, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Edison 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 vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold does it get in Edison in December?
What is the most humid month in Edison?
What is the average humidity in December in Edison?
How many days does it rain in December in Edison?
How much does it snow in Edison in December?
What is the month with the shortest days in Edison?
What is the average length of the day in December in Edison?
When is the sunrise / sunset in December in Edison?
How long on average sun shines in December in Edison?
What are the months with the lowest UV index in Edison?
What is the UV index reading in December in Edison?
Average temperature in December
Edison, NJ
- Average high temperature in December: 42.6°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 32.5°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
Edison, NJ
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Edison, NJ
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Edison, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is August (72%).
Average rainfall in December
Edison, NJ
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Edison, NJ
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Edison, NJ
- Average snowfall in December: 0.94"
The month with the highest snowfall is March (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Edison, NJ
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Edison, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Edison, NJ
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Edison, NJ
- Average UV index in December: 2
The months with the highest UV index are May, 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
Edison, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Edison, NJ
- 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).
Edison, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
