December weather forecastHarvey Cedars, NJ
December
Weather in December
December, the first month of the winter in Harvey Cedars, is still a chilly month, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 45.9°F (7.7°C).Temperature
Harvey Cedars records a mild change in average high-temperature during December, easing from a cool 53.6°F (12°C) in November to a frosty 45.9°F (7.7°C). Harvey Cedars observes a minimal variance in temperature, with a consistent average low of 37°F (2.8°C) during the nights of December.Humidity
In December, the average relative humidity is 76%.Rainfall
In Harvey Cedars, in December, during 10.3 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, there are 138.1 rainfall days, and 17.4" (442mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Harvey Cedars, in December, during 2.1 snowfall days, 0.94" (24mm) of snow is typically accumulated. Throughout the year, there are 12.7 snowfall days, and 3.11" (79mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:58 am and sunset at 4:32 pm. On the last day of December, in Harvey Cedars, sunrise is at 7:17 am and sunset at 4:42 pm EST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 2 suggests these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Harvey Cedars, NJ
- Average high temperature in December: 45.9°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in December: 37°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Harvey Cedars, 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 (29.94"Hg).
Average wind speed in December
Harvey Cedars, NJ
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in December
Harvey Cedars, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in December
Harvey Cedars, NJ
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Harvey Cedars, NJ
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Harvey Cedars, NJ
- Average snowfall in December: 0.94"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harvey Cedars, NJ
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Harvey Cedars, NJ
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Harvey Cedars, NJ
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in December
Harvey Cedars, 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, November and December (UV index 2).
Average cloud cover in December
Harvey Cedars, NJ
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Harvey Cedars, 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).
