December weather forecastChangewater, NJ
December
Weather in December
December, the first month of the winter in Changewater, is also an icy month, with an average temperature varying between 40.1°F (4.5°C) and 28.4°F (-2°C).Temperature
Changewater's progression into December involves a drop in the average high-temperature, receding from a frosty 49.8°F (9.9°C) in November to a cold 40.1°F (4.5°C). An average low-temperature of 28.4°F (-2°C) is common in Changewater, New Jersey, during the nights of December.Humidity
The average relative humidity in December is 80%.Rainfall
In Changewater, during December, the rain falls for 11.7 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Changewater, New Jersey, during the entire year, the rain falls for 157.6 days and collects up to 28.7" (729mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Changewater. In Changewater, in December, during 4.9 snowfall days, 2.4" (61mm) of snow is typically accumulated. In Changewater, New Jersey, during the entire year, snow falls for 30.4 days and aggregates up to 14.76" (375mm) 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 in Changewater, sunrise is at 7:05 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:42 pm EST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Changewater, NJ
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Changewater, NJ
- Average pressure in December: 30.09"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
Changewater, NJ
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Changewater, NJ
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Changewater, NJ
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Changewater, NJ
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Changewater, NJ
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Changewater, NJ
- Average snowfall days in December: 4.9 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Changewater, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Changewater, NJ
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in December
Changewater, NJ
- Average UV index in December: 2
The months with the highest UV index are June and July (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
Changewater, NJ
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Changewater, NJ
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
