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
Transition into December marks a drop in the average high-temperature, moving from a cool 50.5°F (10.3°C) in November to a wintry 40.8°F (4.9°C). Fairfield experiences an average low-temperature of 30.4°F (-0.9°C) in month of December.Humidity
February and December, with an average relative humidity of 79%, are the most humid months in Fairfield.Rainfall
In Fairfield, during December, the rain falls for 10.1 days and regularly aggregates up to 2.48" (63mm) of precipitation. In Fairfield, during the entire year, the rain falls for 158 days and collects up to 27.4" (696mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In Fairfield, in December, snow falls for 4.4 days, with typically accumulated 1.18" (30mm) of snow. Throughout the year, in Fairfield, there are 24.3 snowfall days, and 9.96" (253mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Fairfield, sunrise is at 7:03 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:39 pm EST.
Sunshine
In Fairfield, the average sunshine in December is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fairfield. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
Is December cold in Fairfield?
What are the most humid months in Fairfield?
What is the average humidity in December in Fairfield?
How many days does it rain in December in Fairfield?
How much does it snow in Fairfield in December?
What is the month with the shortest days in Fairfield?
What is the average length of the day in December in Fairfield?
What time are sunrise and sunset in December in Fairfield?
How long on average sun shines in December in Fairfield?
What is the month with the lowest UV index in Fairfield?
How high is the UV index in December in Fairfield?
Average temperature in December
Fairfield, NJ
- Average high temperature in December: 40.8°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 (34.9°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Fairfield, 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
Fairfield, NJ
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Fairfield, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall in December
Fairfield, NJ
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in December
Fairfield, NJ
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Fairfield, NJ
- Average snowfall in December: 1.18"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Fairfield, NJ
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Fairfield, NJ
- Average daylight in December: 9h and 2min
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 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
Fairfield, NJ
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Fairfield, NJ
- Average UV index in December: 2
The months with the highest UV index are 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
Fairfield, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Fairfield, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Fairfield, New Jersey, USA
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