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 is characterized by a slight reduction in average high-temperature, easing from a fresh 53.2°F (11.8°C) in November to a frosty 45.1°F (7.3°C). Nighttime temperature reflects an average dip to a cold 37.8°F (3.2°C) in December, subtly cooler than its daytime highs.Humidity
In Ortley Beach, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall in Ortley Beach is December, when the rain falls for 11.8 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Ortley Beach, in December, snow falls for 1.9 days, with typically accumulated 1.1" (28mm) of snow. Throughout the year, there are 13.1 snowfall days, and 4.65" (118mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine is 5.1h.UV index
January through March 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 minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
What is the rainiest month?
How many days does it rain in December?
How many days 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 in Ortley Beach?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Ortley Beach, NJ
- Average high temperature in December: 45.1°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (39°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Ortley Beach, 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
Ortley Beach, NJ
- Average wind speed in December: 12.9mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is July (8.8mph).
Average humidity in December
Ortley Beach, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (81%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Ortley Beach, NJ
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Ortley Beach, NJ
- Average rainfall days in December: 11.8 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Ortley Beach, NJ
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Ortley Beach, NJ
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is January (4.4 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
Ortley Beach, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Ortley Beach, NJ
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in December
Ortley Beach, 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 and December (UV index 2).
Average cloud cover in December
Ortley Beach, NJ
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Ortley Beach, 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).
Ortley Beach, New Jersey, USA
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