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
December implies a soft temperature shift, with average high-temperatures reducing from November's cool 52.5°F (11.4°C) to a frosty 44.2°F (6.8°C). In Squankum, December's low temperatures hover around a wintry 36°F (2.2°C), reflecting a minor decrease from the daytime highs.Humidity
In December, the average relative humidity is 76%.Rainfall
In Squankum, in December, during 9.4 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 133.4 rainfall days, and 15.08" (383mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. 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 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 4:41 pm EST.
Sunshine
In Squankum, the average sunshine in December is 5.1h.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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Squankum have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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 1min
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
Squankum, 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
Squankum, 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
Squankum, 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
Squankum, 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).
Squankum, New Jersey, USA
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