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
A decrease in the average high-temperature is observed during December, shifting from a fresh 51.1°F (10.6°C) in November to a cold 42.1°F (5.6°C). December's nights in Flagtown observe an average temperature of 30.7°F (-0.7°C).Humidity
February, October and December, with an average relative humidity of 79%, are the most humid months in Flagtown.Rainfall
In Flagtown, during December, the rain falls for 7.7 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Flagtown, during the entire year, the rain falls for 113.9 days and collects up to 10.83" (275mm) of precipitation.Snowfall
Months with snowfall in Flagtown, New Jersey, are January through May, November and December. In Flagtown, during December, snow falls for 2.6 days and regularly aggregates up to 0.63" (16mm) of snow. In Flagtown, during the entire year, snow falls for 15.6 days and aggregates up to 3.19" (81mm) 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 the month, sunrise is at 7:03 am and sunset at 4:32 pm. On the last day of December, in Flagtown, sunrise is at 7:21 am and sunset at 4:42 pm EST.
Sunshine
In Flagtown, 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 Flagtown. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Flagtown in December?
What are the most humid months in Flagtown?
What is the average humidity in December in Flagtown?
How many days does it rain in December in Flagtown?
How much does it snow in Flagtown in December?
What is the month with the shortest days in Flagtown?
How many hours of daylight does Flagtown have in December?
When is the sunrise / sunset in December in Flagtown?
How many hours of sunshine does Flagtown have in December?
What is the month with the lowest UV index in Flagtown?
What is the UV index reading in December in Flagtown?
Average temperature in December
Flagtown, NJ
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Flagtown, 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
Flagtown, NJ
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Flagtown, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Flagtown, NJ
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in December
Flagtown, NJ
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Flagtown, NJ
- Average snowfall in December: 0.63"
The month with the highest snowfall is March (0.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Flagtown, NJ
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (5.1 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
Flagtown, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Flagtown, NJ
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in December
Flagtown, 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
Flagtown, NJ
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Flagtown, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Flagtown, New Jersey, USA
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