December weather forecastGuttenberg, NJ
December
Weather in December
The first month of the winter, December, is also an icy month in Guttenberg, New Jersey, with an average temperature ranging between min 32.9°F (0.5°C) and max 42.1°F (5.6°C).Temperature
In Guttenberg, the beginning of December is marked by a lowered average high-temperature, shifting from November's fresh 51.3°F (10.7°C) to a cold 42.1°F (5.6°C). Throughout December, Guttenberg experiences a low-temperature average of 32.9°F (0.5°C).Humidity
The average relative humidity in December is 75%.Rainfall
December is the month with the most rainfall. Rain falls for 12.6 days and accumulates 3.9" (99mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Guttenberg, in December, during 3.7 snowfall days, 1.73" (44mm) of snow is typically accumulated. In Guttenberg, during the entire year, snow falls for 24.2 days and aggregates up to 11.14" (283mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December is 4.9h.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 low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Guttenberg, NJ
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 32.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Guttenberg, NJ
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Guttenberg, NJ
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Guttenberg, NJ
- Average humidity in December: 75%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Guttenberg, NJ
- Average rainfall in December: 3.9"
The wettest month (with the highest rainfall) is December (3.9").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Guttenberg, NJ
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Guttenberg, NJ
- Average snowfall in December: 1.73"
The month with the highest snowfall is March (3.74").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Guttenberg, NJ
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Guttenberg, NJ
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Guttenberg, NJ
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10 days).
Average UV index in December
Guttenberg, 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, March, November and December (UV index 2).
Average cloud cover in December
Guttenberg, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Guttenberg, 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).
