December weather forecastWarren Grove, NJ
December
Weather in December
December, the first month of the winter in Warren Grove, is still a chilly month, with an average temperature ranging between min 37°F (2.8°C) and max 45.9°F (7.7°C).Temperature
December brings a slight decrease in the average high-temperature, shifting from a cool 53.6°F (12°C) in November to a frosty 45.9°F (7.7°C). Warren Grove registers a gentle descent to an average nighttime low of 37°F (2.8°C) in December from its daytime highs.Humidity
The average relative humidity in December is 76%.Rainfall
In Warren Grove, during December, the rain falls for 10.3 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Warren Grove, during the entire year, the rain falls for 138.1 days and collects up to 17.4" (442mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Warren Grove, 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
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:33 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:43 pm EST.
Sunshine
The average sunshine in December 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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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
Warren Grove, 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).
