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 start of December involves a subtle temperature drop, shifting from a cool 54°F (12.2°C) in November to a chilly 45.5°F (7.5°C). The nights of December anticipate an average low-temperature of 35.4°F (1.9°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Fortescue, during December, the rain falls for 9.2 days and regularly aggregates up to 1.42" (36mm) of precipitation. Throughout the year, in Fortescue, there are 132.2 rainfall days, and 15.39" (391mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Fortescue. In Fortescue, during December, snow falls for 2.2 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 13 snowfall days, and 3.58" (91mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Fortescue.On the first day of December in Fortescue, sunrise is at 7:01 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December is 5.2h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are December temperatures in Fortescue?
What is the average humidity in December in Fortescue?
How many days does it rain in December in Fortescue?
How many days does it snow in December in Fortescue?
What is the month with the shortest days in Fortescue?
How many hours of daylight does Fortescue have in December?
What time are sunrise and sunset in December in Fortescue?
How many hours of sunshine does Fortescue have in December?
When is the lowest UV index in Fortescue?
How high is the UV index in December in Fortescue?
Average temperature in December
Fortescue, NJ
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Fortescue, NJ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Fortescue, NJ
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Fortescue, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Fortescue, NJ
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is August (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Fortescue, NJ
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in December
Fortescue, NJ
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Fortescue, NJ
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (4 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
Fortescue, NJ
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Fortescue, NJ
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is November (21.6 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in December
Fortescue, 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 and December (UV index 2).
Average cloud cover in December
Fortescue, 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 28).
Average visibility in December
Fortescue, 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).
Fortescue, New Jersey, USA
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