December weather forecast and climate
Florence, NJ

December, the first month of the winter, in Florence, is also a frosty month, with average temperature fluctuating between 32.4°F (0.2°C) and 43.7°F (6.5°C).

Temperature

In December, the average high-temperature marginally drops, from a fresh 52.3°F (11.3°C) in November, to a chilly 43.7°F (6.5°C). In December, in Florence, the average low-temperature is 32.4°F (0.2°C).

Humidity

In Florence, New Jersey, the average relative humidity is 77%.

Rainfall

In Florence, New Jersey, in December, it is raining for 10.9 days, with typically 3.19" (81mm) of accumulated precipitation. In Florence, during the entire year, the rain falls for 154.4 days and collects up to 31.38" (797mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Florence, during 2.8 snowfall days, 1.22" (31mm) of snow is typically accumulated. Throughout the year, there are 15.9 snowfall days, and 8.5" (216mm) of snow is accumulated.

Daylight

The month with the shortest days in Florence is December, with an average of 9.4h of daylight.

Sunshine

The average sunshine in Florence is 5h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Florence, New Jersey. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Florence?

In Florence, in December, the average high-temperature is 43.7°F (6.5°C), and the average low-temperature is 32.4°F (0.2°C).

What is the average humidity in December in Florence?

In Florence, the average relative humidity in December is 77%.

How much does it rain in Florence in December?

In December, in Florence, New Jersey, the rain falls for 10.9 days. Throughout December, 3.19" (81mm) of precipitation is accumulated.

How much does it snow in Florence in December?

In December, in Florence, it is snowing for 2.8 days. Throughout December, 1.22" (31mm) of snow is accumulated.

What is the month with the shortest days in Florence?

December has the shortest days of the year in Florence, New Jersey, with an average of 9.4h of daylight.

What is the average length of the day in December in Florence?

In December, the average length of the day in Florence is 9.4h.

How long on average sun shines in December in Florence?

The average sunshine in December in Florence is 5h.

What is the month with the lowest UV index in Florence?

Months with the lowest UV index in Florence are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Florence?

The average daily maximum UV index in December in Florence, New Jersey, is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.
Average temperature in December - Florence, NJ
  • Average high temperature in December: 6.5°C

The warmest month (with the highest average high temperature) is July (29.7°C).
The month with the lowest average high temperature is January (2.8°C).

  • Average low temperature in December: 0.2°C

The month with the highest average low temperature is July (20°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).

Average pressure in December - Florence, NJ
  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is November (1019.8mbar).
The month with the lowest atmospheric pressure is June (1013.7mbar).

Average wind speed in December - Florence, NJ
  • Average wind speed in December: 12.3km/h

The windiest month (with the highest average wind speed) is March (13.8km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in December - Florence, NJ
  • Average humidity in December: 77%

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: 81mm

The wettest month (with the highest rainfall) is July (93mm).
The driest month (with the least rainfall) is January (48mm).

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: 31mm

The month with the highest snowfall is March (76mm).
Months with the least snowfall are June, July, August, September and October (0mm).

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).
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: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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

Months with the highest UV index are May, June, July and August (UV index 6).
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

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: 9km

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).