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
The arrival of December is marked by a minor reduction in average high-temperature, sliding from a cool 52.3°F (11.3°C) in November to a chilly 43.7°F (6.5°C). Throughout December, the temperature falls to an average low of 32.4°F (0.2°C).Humidity
In Florence, the average relative humidity in December is 77%.Rainfall
In Florence, in December, it is raining for 10.9 days, with typically 3.19" (81mm) of accumulated precipitation. Throughout the year, there are 154.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Florence, during December, snow falls for 2.8 days and regularly aggregates up to 1.22" (31mm) of snow. In Florence, during the entire year, snow falls for 15.9 days and aggregates up to 8.5" (216mm) 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 7:02 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:43 pm EST.
Sunshine
The average sunshine in December is 5h.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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 in December translates into these instructions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Florence have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December in Florence?
Average temperature in December
Florence, NJ
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Florence, 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 (29.93"Hg).
Average wind speed in December
Florence, NJ
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Florence, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Florence, NJ
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Florence, NJ
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Florence, NJ
- Average snowfall in December: 1.22"
The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Florence, NJ
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.8 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
Florence, 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
Florence, NJ
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Florence, 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
Florence, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Florence, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Florence, New Jersey, USA
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