Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Perrineville, the average high-temperature in December slightly decreases from a fresh 52.5°F (11.4°C) in November to a chilly 43.9°F (6.6°C). Perrineville's nights in December cool down to an average low-temperature of 32.7°F (0.4°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In Perrineville, in December, it is raining for 11 days, with typically 2.95" (75mm) of accumulated precipitation. In Perrineville, during the entire year, the rain falls for 154.3 days and collects up to 29.25" (743mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 3.2 days. Throughout December, 1.14" (29mm) of snow is accumulated. Throughout the year, there are 18.9 snowfall days, and 8.39" (213mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:01 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:42 pm EST.
Sunshine
The average sunshine in December is 5h.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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in Perrineville in December?
What is the month with the shortest days?
How many hours of daylight does Perrineville have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December in Perrineville?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Perrineville, NJ
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Perrineville, 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
Perrineville, NJ
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Perrineville, NJ
- Average humidity in December: 78%
The months with the highest relative humidity are June and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Perrineville, NJ
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is July (3.5").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Perrineville, NJ
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Perrineville, NJ
- Average snowfall in December: 1.14"
The month with the highest snowfall is March (3.23").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Perrineville, NJ
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Perrineville, NJ
- Average daylight in December: 9h and 2min
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 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Perrineville, NJ
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Perrineville, 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
Perrineville, NJ
- Average cloud cover in December: 47
The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Perrineville, 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).
Perrineville, New Jersey, USA
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