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's arrival coincides with a drop in the average high-temperature, decreasing from November's fresh 50.9°F (10.5°C) to a cold 41.9°F (5.5°C). In Floral Hill, the expected average low-temperature for December is a subzero cold 31.1°F (-0.5°C).Humidity
February and December, with an average relative humidity of 79%, are the most humid months.Rainfall
The months with the most rainfall are July and December, with an average 3.11" (79mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Floral Hill, in December, snow falls for 4.2 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, there are 26.6 snowfall days, and 11.18" (284mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:02 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:40 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 2 during December translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the most humid month?
What is the average humidity in December in Floral Hill?
What is the rainiest month in Floral Hill?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Floral Hill have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Floral Hill have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Floral Hill, NJ
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Floral Hill, 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
Floral Hill, NJ
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Floral Hill, NJ
- Average humidity in December: 79%
The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Floral Hill, NJ
- Average rainfall in December: 3.11"
The wettest months (with the highest rainfall) are July and December (3.11").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Floral Hill, NJ
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in December
Floral Hill, NJ
- Average snowfall in December: 1.69"
The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Floral Hill, NJ
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Floral Hill, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Floral Hill, NJ
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Floral Hill, 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, March, November and December (UV index 2).
Average cloud cover in December
Floral Hill, NJ
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in December
Floral Hill, 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).
Floral Hill, New Jersey, USA
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