December weather forecastHighland Park, NJ
December
Weather in December
December, the first month of the winter in Highland Park, is still a chilly month, with an average temperature varying between 32.7°F (0.4°C) and 43.2°F (6.2°C).Temperature
Highland Park, New Jersey, observes a small decrease in the average high-temperature with the arrival of December, falling from November's fresh 52°F (11.1°C) to a frosty 43.2°F (6.2°C). During December, the average low-temperature is a cold 32.7°F (0.4°C).Humidity
The months with the highest humidity in Highland Park are February, October and December, with an average relative humidity of 77%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 104.8 rainfall days, and 8.98" (228mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Highland Park. In Highland Park, in December, during 2.4 snowfall days, 0.35" (9mm) of snow is typically accumulated. In Highland Park, during the entire year, snow falls for 14.3 days and aggregates up to 1.77" (45mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index in Highland Park, New Jersey, are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Highland Park, NJ
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in December
Highland Park, 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
Highland Park, NJ
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in December
Highland Park, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February, October and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall in December
Highland Park, NJ
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in December
Highland Park, NJ
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Highland Park, NJ
- Average snowfall in December: 0.35"
The month with the highest snowfall is March (0.55").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Highland Park, NJ
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Highland Park, NJ
- Average daylight in December: 9h and 18min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Highland Park, NJ
- Average sunshine days in December: 20.7 days
The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is July (15.3 days).
Average UV index in December
Highland Park, NJ
- Average UV index in December: 2
The months with the highest UV index are May, 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
Highland Park, 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 32).
Average visibility in December
Highland Park, 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).
