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
Start of December brings a slight shift in the average high-temperature, dipping a bit from November's fresh 52.3°F (11.3°C) to a frosty 44.4°F (6.9°C). An average temperature of 36.3°F (2.4°C) is logged during the nights of December, a small step down from daytime highs.Humidity
In December, the average relative humidity in Deal Park is 75%.Rainfall
In Deal Park, during December, the rain falls for 8.8 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Deal Park, there are 122.1 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, October and December. The month with the most snowfall in Deal Park is December, when snow falls for 3.1 days and typically aggregates up to 0.47" (12mm) of snow.Daylight
With an average of 9h and 24min 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 4:30 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:40 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Deal Park. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is it in Deal Park in December?
What is the average humidity in December in Deal Park?
How many days does it rain in December in Deal Park?
What is the snowiest month in Deal Park?
When does it start snowing in Deal Park?
What is the month with the shortest days in Deal Park?
What is the average length of the day in December in Deal Park?
When is the sunrise / sunset in December in Deal Park?
How long on average sun shines in December in Deal Park?
What are the months with the lowest UV index in Deal Park?
How high is the UV index in December in Deal Park?
Average temperature in December
Deal Park, NJ
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in December
Deal Park, 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
Deal Park, NJ
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Deal Park, NJ
- Average humidity in December: 75%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Deal Park, NJ
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Deal Park, NJ
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in December
Deal Park, NJ
- Average snowfall in December: 0.47"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").
Average snowfall days in December
Deal Park, NJ
- Average snowfall days in December: 3.1 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deal Park, 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 48min).
Average sunshine days in December
Deal Park, NJ
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in December
Deal Park, 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
Deal Park, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Deal Park, 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).
Deal Park, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
