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
The advent of December brings a subtle shift in temperature, with the average high moving from a cool 52.7°F (11.5°C) in November to a frosty 44.6°F (7°C). In December, the temperature in Keswick Grove, New Jersey, drops to an average of 34.3°F (1.3°C) at night.Humidity
The average relative humidity in December is 78%.Rainfall
In Keswick Grove, during December, the rain falls for 8.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 114.4 rainfall days, and 10.28" (261mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Keswick Grove, in December, snow falls for 2.2 days, with typically accumulated 0.59" (15mm) of snow. Throughout the year, in Keswick Grove, there are 12.4 snowfall days, and 2.36" (60mm) of snow is accumulated.Daylight
The month with the shortest days in Keswick Grove is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:00 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:42 pm EST.
Sunshine
In December, the average sunshine in Keswick Grove is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 2 in December transforms into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold does it get in Keswick Grove in December?
What is the average humidity in December in Keswick Grove?
How many days does it rain in December in Keswick Grove?
How many days does it snow in December in Keswick Grove?
What is the month with the shortest days in Keswick Grove?
How many hours of daylight does Keswick Grove have in December?
When is the sunrise / sunset in December in Keswick Grove?
How many hours of sunshine does Keswick Grove have in December?
What is the month with the lowest UV index in Keswick Grove?
What is the UV index reading in December in Keswick Grove?
Average temperature in December
Keswick Grove, NJ
- Average high temperature in December: 44.6°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 34.3°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 (27°F).
Average pressure in December
Keswick Grove, 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
Keswick Grove, NJ
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is March (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Keswick Grove, NJ
- Average humidity in December: 78%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Keswick Grove, NJ
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is July (1.38").
The driest months (with the least rainfall) are January and September (0.55").
Average rainfall days in December
Keswick Grove, NJ
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in December
Keswick Grove, NJ
- Average snowfall in December: 0.59"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Keswick Grove, NJ
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is January (3.7 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
Keswick Grove, 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 48min).
Average sunshine days in December
Keswick Grove, NJ
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in December
Keswick Grove, 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, November and December (UV index 2).
Average cloud cover in December
Keswick Grove, 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 30).
Average visibility in December
Keswick Grove, 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).
Keswick Grove, New Jersey, USA
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