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's arrival correlates with a reduction in the average high-temperature, down from a fresh 53.6°F (12°C) in November to a frosty 44.2°F (6.8°C). In December, Runnemede experiences an average nighttime temperature of 33.1°F (0.6°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Runnemede, in December, during 7.3 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 117 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Snowfall
January through March, May, November and December are months with snowfall in Runnemede. In December, in Runnemede, it is snowing for 2 days. Throughout December, 0.24" (6mm) of snow is accumulated. In Runnemede, during the entire year, snow falls for 11.4 days and aggregates up to 3.11" (79mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:36 pm. On the last day of December, in Runnemede, New Jersey, sunrise is at 7:21 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
Is it cold in Runnemede during December?
What is the average humidity in December in Runnemede?
How many days does it rain in December in Runnemede?
How much does it snow in Runnemede in December?
What is the month with the shortest days in Runnemede?
How many hours of daylight does Runnemede have in December?
When are sunrise and sunset in December in Runnemede?
How long on average sun shines in December in Runnemede?
What is the month with the lowest UV index in Runnemede?
What is the UV index intensity in December in Runnemede?
Average temperature in December
Runnemede, NJ
- Average high temperature in December: 44.2°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 33.1°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in December
Runnemede, NJ
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Runnemede, NJ
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Runnemede, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Runnemede, NJ
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").
Average rainfall days in December
Runnemede, NJ
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in December
Runnemede, NJ
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Runnemede, NJ
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Runnemede, 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Runnemede, NJ
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).
Average UV index in December
Runnemede, NJ
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Runnemede, 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 31).
Average visibility in December
Runnemede, 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).
Runnemede, New Jersey, USA
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