December weather forecastAllaire, NJ
December
Weather in December
December, the first month of the winter in Allaire, is also a frosty month, with an average temperature varying between 36°F (2.2°C) and 44.2°F (6.8°C).Temperature
December brings a slight decrease in the average high-temperature, shifting from a cool 52.5°F (11.4°C) in November to a chilly 44.2°F (6.8°C). A steady low-temperature average of 36°F (2.2°C) is logged in Allaire during December, reflecting a modest dip from daytime readings.Humidity
The average relative humidity in December is 76%.Rainfall
In Allaire, in December, during 9.4 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, in Allaire, there are 133.4 rainfall days, and 15.08" (383mm) of precipitation is accumulated.Snowfall
Months with snowfall in Allaire are January through March, November and December. The months with the most snowfall are January and December, with an average 0.71" (18mm) of accumulated snow.Daylight
The month with the shortest days in Allaire, New Jersey, is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:40 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index in Allaire are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December leads to these instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Allaire, NJ
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Allaire, 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
Allaire, NJ
- Average wind speed in December: 11.2mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Allaire, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in December
Allaire, NJ
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Allaire, NJ
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in December
Allaire, NJ
- Average snowfall in December: 0.71"
The months with the highest snowfall are January and December (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Allaire, NJ
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.6 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
Allaire, 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
Allaire, NJ
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Allaire, 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
Allaire, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Allaire, 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).
