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
In Cranford, entering December brings a temperature decrement, reducing from November's cool 50.9°F (10.5°C) to a wintry 41.9°F (5.5°C). Cranford records an average temperature drop to a still cold 32.4°F (0.2°C) in December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 77%.Rainfall
In Cranford, New Jersey, in December, it is raining for 7.4 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, there are 117.5 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In Cranford, during December, snow falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of snow. In Cranford, during the entire year, snow falls for 16.7 days and aggregates up to 1.97" (50mm) of snow.Daylight
December has the shortest days of the year in Cranford, with an average of 9h and 18min of daylight.On the first day of December in Cranford, sunrise is at 7:02 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:40 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Cranford are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during December translates into the following guidance:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
Is December cold in Cranford?
What are the most humid months in Cranford?
What is the average humidity in December in Cranford?
How many days does it rain in December in Cranford?
How many days does it snow in December in Cranford?
What is the month with the shortest days in Cranford?
How many hours of daylight does Cranford have in December?
When is the sunrise / sunset in December in Cranford?
How many hours of sunshine does Cranford have in December?
What are the months with the lowest UV index in Cranford?
How high is the UV index in December in Cranford?
Average temperature in December
Cranford, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 32.4°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 (24.6°F).
Average pressure in December
Cranford, 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
Cranford, NJ
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in December
Cranford, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Cranford, NJ
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in December
Cranford, NJ
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Cranford, NJ
- Average snowfall in December: 0.2"
The month with the highest snowfall is March (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cranford, NJ
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is February (5.1 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
Cranford, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Cranford, NJ
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is June (13.5 days).
Average UV index in December
Cranford, 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
Cranford, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Cranford, 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).
Cranford, New Jersey, USA
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