December weather forecastWindor Park, NJ
December
Weather in December
December, the first month of the winter in Windor Park, is also a frosty month, with an average temperature varying between 37.8°F (3.2°C) and 45.1°F (7.3°C).Temperature
A moderate decline in average high-temperatures is noted in December, moving from a fresh 53.2°F (11.8°C) in November to a frosty 45.1°F (7.3°C). Windor Park in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 37.8°F (3.2°C).Humidity
In December, the average relative humidity in Windor Park, New Jersey, is 76%.Rainfall
The month with the most rainfall in Windor Park is December, when the rain falls for 11.8 days and typically aggregates up to 3.7" (94mm) of precipitation.Snowfall
Months with snowfall in Windor Park are January through April, November and December. In Windor Park, during December, snow falls for 1.9 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, there are 13.1 snowfall days, and 4.65" (118mm) of snow is accumulated.Daylight
The month with the shortest days in Windor Park, New Jersey, is December, 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, in Windor Park, New Jersey, sunrise is at 7:18 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. On your guard! Snow's reflection 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
Average temperature in December
Windor Park, 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
Windor 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
Windor Park, 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
Windor Park, 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
Windor Park, 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
Windor Park, 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
Windor Park, 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
Windor Park, 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
Windor Park, NJ
- Average daylight in December: 9h and 24min
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 6min
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
Windor Park, 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
Windor 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 and December (UV index 2).
Average cloud cover in December
Windor Park, 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
Windor 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).
