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
With the onset of December, McAfee's average high-temperature adjusts, receding from November's chilly 48°F (8.9°C) to a cold 38.7°F (3.7°C). McAfee reports a consistent average low-temperature of 26.8°F (-2.9°C) throughout December nights.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 82%.Rainfall
In McAfee, during December, the rain falls for 9.4 days and regularly aggregates up to 2.52" (64mm) of precipitation. In McAfee, during the entire year, the rain falls for 149.5 days and collects up to 28.23" (717mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 3.5" (89mm) of snow is accumulated. In McAfee, during the entire year, snow falls for 30.6 days and aggregates up to 19.53" (496mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:39 pm EST.
Sunshine
The average sunshine in December is 4.6h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Experience reduced UV exposure by about half when donning a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the most humid month?
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 in McAfee?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
McAfee, NJ
- Average high temperature in December: 38.7°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
McAfee, 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
McAfee, NJ
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
McAfee, NJ
- Average humidity in December: 82%
The months with the highest relative humidity are February, October and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
McAfee, NJ
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in December
McAfee, NJ
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
McAfee, NJ
- Average snowfall in December: 3.5"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
McAfee, NJ
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
McAfee, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
McAfee, NJ
- Average sunshine days in December: 17.8 days
The months with the most sunshine days are January and November (18.8 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
McAfee, NJ
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
McAfee, NJ
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
McAfee, NJ
- 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).
McAfee, New Jersey, USA
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