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 coincides with a small decrease in the average high-temperature, down to a frosty 43.5°F (6.4°C) from a fresh 52.3°F (11.3°C). During December nights, Cliffwood witnesses a consistent average temperature of 34.2°F (1.2°C).Humidity
The average relative humidity in December in Cliffwood is 76%.Rainfall
In Cliffwood, in December, it is raining for 10.7 days, with typically 2.8" (71mm) of accumulated precipitation. In Cliffwood, New Jersey, during the entire year, the rain falls for 153 days and collects up to 28.7" (729mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Cliffwood. In Cliffwood, in December, during 3.1 snowfall days, 0.83" (21mm) of snow is typically accumulated. In Cliffwood, New Jersey, during the entire year, snow falls for 16.9 days and aggregates up to 6.34" (161mm) 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 7:01 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:40 pm EST.
Sunshine
In Cliffwood, the average sunshine in December is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Cliffwood. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is it in Cliffwood in December?
What is the average humidity in December in Cliffwood?
How much does it rain in Cliffwood in December?
How many days does it snow in December in Cliffwood?
What is the month with the shortest days in Cliffwood?
How many hours of daylight does Cliffwood have in December?
When is the sunrise / sunset in December in Cliffwood?
How long on average sun shines in December in Cliffwood?
When is the lowest UV index in Cliffwood?
What is the UV index intensity in December in Cliffwood?
Average temperature in December
Cliffwood, NJ
- Average high temperature in December: 43.5°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 (37°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in December
Cliffwood, 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
Cliffwood, NJ
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Cliffwood, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (77%).
The months with the lowest relative humidity are March, April, August and November (73%).
Average rainfall in December
Cliffwood, NJ
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in December
Cliffwood, NJ
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Cliffwood, NJ
- Average snowfall in December: 0.83"
The month with the highest snowfall is March (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cliffwood, NJ
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (5 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
Cliffwood, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Cliffwood, NJ
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in December
Cliffwood, 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
Cliffwood, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Cliffwood, 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).
Cliffwood, New Jersey, USA
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