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
As December commences, the average high-temperature subtly reduces, transitioning from a fresh 53.6°F (12°C) in November to a frosty 45.5°F (7.5°C). An average low-temperature of 34.2°F (1.2°C) is common during the nights of December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Hammonton, in December, during 7.7 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Hammonton, New Jersey, during the entire year, the rain falls for 115 days and collects up to 12.44" (316mm) of precipitation.Snowfall
Months with snowfall are January through March, May, November and December. In Hammonton, in December, snow falls for 2.3 days, with typically accumulated 0.24" (6mm) of snow. In Hammonton, during the entire year, snow falls for 11.9 days and aggregates up to 2.99" (76mm) of 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 7:01 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 4:45 pm EST.
Sunshine
In December, the average sunshine is 5.1h.UV index
The months with the lowest UV index in Hammonton 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 threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Hammonton in December?
What is the average humidity in December?
How much does it rain in December?
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 is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Hammonton, NJ
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in December
Hammonton, NJ
- Average pressure in December: 30.09"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
Hammonton, NJ
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Hammonton, NJ
- Average humidity in December: 77%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Hammonton, NJ
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is July (1.54").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Hammonton, NJ
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in December
Hammonton, NJ
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Hammonton, NJ
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (3.7 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
Hammonton, NJ
- Average daylight in December: 9h and 2min
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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Hammonton, NJ
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in December
Hammonton, NJ
- Average UV index in December: 2
The months with the highest UV index are May, 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
Hammonton, NJ
- Average cloud cover in December: 45
The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Hammonton, 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).
Hammonton, New Jersey, USA
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