December weather forecastStone Harbor, NJ
December
Weather in December
The first month of the winter, December, is still a chilly month in Stone Harbor, New Jersey, with an average temperature fluctuating between 39.4°F (4.1°C) and 46.8°F (8.2°C).Temperature
In Stone Harbor, the beginning of December is marked by a marginally lowered average high-temperature, shifting from November's cool 54.3°F (12.4°C) to a frosty 46.8°F (8.2°C). Stone Harbor's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at an icy 39.4°F (4.1°C).Humidity
In Stone Harbor, the average relative humidity in December is 75%.Rainfall
In December, the rain falls for 7.2 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. Throughout the year, in Stone Harbor, there are 112.7 rainfall days, and 8.94" (227mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.6 snowfall days, it receives 0.2" (5mm) of snow. Throughout the year, there are 8.3 snowfall days, and 0.67" (17mm) of snow is accumulated.Ocean temperature
In Stone Harbor, in December, the average water temperature is 48°F (8.9°C).Note: To swim in 48°F (8.9°C) at less than 50°F (10°C), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 55.4°F (13°C) is not welcoming.
Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:59 am and sunset at 4:37 pm. On the last day of December, in Stone Harbor, sunrise is at 7:17 am and sunset at 4:46 pm EST.
Sunshine
In Stone Harbor, the average sunshine in December is 5.2h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Stone Harbor, New Jersey. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
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 midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stone Harbor, NJ
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 39.4°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in December
Stone Harbor, 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 (29.94"Hg).
Average wind speed in December
Stone Harbor, NJ
- Average wind speed in December: 13mph
The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).
Average humidity in December
Stone Harbor, NJ
- Average humidity in December: 75%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Stone Harbor, NJ
- Average rainfall in December: 0.75"
The wettest months (with the highest rainfall) are May and June (0.98").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Stone Harbor, NJ
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in December
Stone Harbor, NJ
- Average snowfall in December: 0.2"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Stone Harbor, NJ
- Average snowfall days in December: 1.6 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in December
Stone Harbor, NJ
- Average sea temperature in December: 48°F
The best month for swimming (with the highest average sea temperature) is August (76.5°F).
The coldest month (with the lowest average sea temperature) is February (40.3°F).
Average daylight in December /
Average sunshine in December
Stone Harbor, NJ
- Average daylight in December: 9h and 30min
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 12min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Stone Harbor, NJ
- Average sunshine days in December: 21 days
The months with the most sunshine days are January and November (22.3 days).
The month with the least sunshine days is July (15.6 days).
Average UV index in December
Stone Harbor, 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 and December (UV index 2).
Average cloud cover in December
Stone Harbor, NJ
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in December
Stone Harbor, 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).
