December weather forecastYorketown, NJ
December
Weather in December
The first month of the winter, December, is still a chilly month in Yorketown, New Jersey, with an average temperature varying between 43.7°F (6.5°C) and 34.2°F (1.2°C).Temperature
As December arrives, Yorketown's weather displays a minor decrease in high-temperatures, transitioning from November's cool 52.2°F (11.2°C) to a frosty 43.7°F (6.5°C). In Yorketown, the nighttime temperature averages to a wintry 34.2°F (1.2°C) during December.Humidity
In Yorketown, the average relative humidity in December is 76%.Rainfall
December is the month with the most rainfall in Yorketown. Rain falls for 12.1 days and accumulates 3.35" (85mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Yorketown, New Jersey. In Yorketown, in December, during 3.5 snowfall days, 1.46" (37mm) of snow is typically accumulated. Throughout the year, in Yorketown, there are 19.1 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Yorketown.On the first day of the month, sunrise is at 7:01 am and sunset at 4:31 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:41 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index in Yorketown are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yorketown, NJ
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in December
Yorketown, 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
Yorketown, NJ
- Average wind speed in December: 9.5mph
The windiest months (with the highest average wind speed) are January and March (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).
Average humidity in December
Yorketown, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are January, March, April, August and November (74%).
Average rainfall in December
Yorketown, NJ
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Yorketown, NJ
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (16.4 days).
The months with the least rainy days are January and November (9.8 days).
Average snowfall in December
Yorketown, NJ
- Average snowfall in December: 1.46"
The month with the highest snowfall is March (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Yorketown, NJ
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (5.3 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
Yorketown, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Yorketown, 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 (12.3 days).
Average UV index in December
Yorketown, 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
Yorketown, NJ
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Yorketown, 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).
