December weather forecastMillhurst, NJ
December
Weather in December
The first month of the winter, December, is still a chilly month in Millhurst, New Jersey, with an average temperature fluctuating between 34°F (1.1°C) and 43.7°F (6.5°C).Temperature
December ushers in a minute temperature change, with average high-temperatures reducing from November's cool 52.3°F (11.3°C) to a chilly 43.7°F (6.5°C). An average low-temperature of 34°F (1.1°C) is observed during December nights.Humidity
In Millhurst, New Jersey, the average relative humidity in December is 77%.Rainfall
The months with the most rainfall are July and December, with an average 3.7" (94mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Millhurst, New Jersey, in December, snow falls for 3.8 days, with typically accumulated 1.46" (37mm) of snow. In Millhurst, during the entire year, snow falls for 20.4 days and aggregates up to 8.19" (208mm) of snow.Daylight
The month with the shortest days in Millhurst is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:41 pm EST.
Sunshine
In Millhurst, the average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Millhurst, NJ
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Millhurst, 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
Millhurst, NJ
- Average wind speed in December: 9.7mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Millhurst, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March and April (74%).
Average rainfall in December
Millhurst, NJ
- Average rainfall in December: 3.7"
The wettest months (with the highest rainfall) are July and December (3.7").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in December
Millhurst, NJ
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in December
Millhurst, NJ
- Average snowfall in December: 1.46"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millhurst, NJ
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millhurst, NJ
- Average daylight in December: 9h and 24min
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 24min).
- Average sunshine in December: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Millhurst, NJ
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Millhurst, 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
Millhurst, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Millhurst, 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).
