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 arrival of December corresponds with a minor reduction in the average high-temperature, down from November's cool 53.1°F (11.7°C) to a frosty 45°F (7.2°C). A steady low-temperature average of 36.1°F (2.3°C) is logged in Island Heights, New Jersey, during December, reflecting a modest dip from daytime readings.Humidity
The average relative humidity in December in Island Heights is 77%.Rainfall
In Island Heights, New Jersey, during December, the rain falls for 9.6 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Island Heights, during the entire year, the rain falls for 129.4 days and collects up to 15.31" (389mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. December is the month with the most snowfall in Island Heights. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.Daylight
The month with the shortest days in Island Heights, 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 4:32 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:41 pm EST.
Sunshine
In December, the average sunshine in Island Heights 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 of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 2 suggests this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
What is the average December temperature in Island Heights?
What is the average humidity in December in Island Heights?
How many days does it rain in December in Island Heights?
What is the snowiest month in Island Heights?
How much does it snow in Island Heights in December?
What is the month with the shortest days in Island Heights?
How many hours of daylight does Island Heights have in December?
When are sunrise and sunset in December in Island Heights?
How many hours of sunshine does Island Heights have in December?
What are the months with the lowest UV index in Island Heights?
What is the UV index intensity in December in Island Heights?
Average temperature in December
Island Heights, NJ
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 36.1°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Island Heights, 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
Island Heights, NJ
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in December
Island Heights, NJ
- Average humidity in December: 77%
The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).
Average rainfall in December
Island Heights, NJ
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
Island Heights, NJ
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Island Heights, NJ
- Average snowfall in December: 0.75"
The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Island Heights, NJ
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Island Heights, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Island Heights, NJ
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in December
Island Heights, 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
Island Heights, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Island Heights, 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).
Island Heights, New Jersey, USA
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