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 sea temperature 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
Perth Amboy observes a small decrease in the average high-temperature with the arrival of December, falling from November's cool 52°F (11.1°C) to a frosty 43.3°F (6.3°C). Nighttime temperature in Perth Amboy, New Jersey, lowers to an average of 33.4°F (0.8°C) in December.Humidity
In December, the average relative humidity is 76%.Rainfall
The months with the most rainfall in Perth Amboy are July and December, with an average 3.31" (84mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In December, it is snowing for 3.4 days. Throughout December, 1.34" (34mm) of snow is accumulated. In Perth Amboy, New Jersey, during the entire year, snow falls for 19.5 days and aggregates up to 8.35" (212mm) of snow.Ocean temperature
In December, the average ocean temperature in Perth Amboy is 47.1°F (8.4°C).Note: Navigating the 47.1°F (8.4°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Perth Amboy, New Jersey, sunrise is at 7:01 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:40 pm EST.
Sunshine
The average sunshine in December is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Perth Amboy, New Jersey. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold is December in Perth Amboy?
What is the average humidity in December in Perth Amboy?
What is the wettest month in Perth Amboy?
How much does it rain in Perth Amboy in December?
How much does it snow in Perth Amboy in December?
What is the ocean temperature in December in Perth Amboy?
What is the month with the shortest days in Perth Amboy?
What is the average length of the day in December in Perth Amboy?
When is the sunrise / sunset in December in Perth Amboy?
How many hours of sunshine does Perth Amboy have in December?
When is the lowest UV index in Perth Amboy?
What is the UV index reading in December in Perth Amboy?
Average temperature in December
Perth Amboy, NJ
- Average high temperature in December: 43.3°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 (36.9°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Perth Amboy, 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
Perth Amboy, NJ
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Perth Amboy, NJ
- Average humidity in December: 76%
The months with the highest relative humidity are February and May (77%).
The months with the lowest relative humidity are March, April, August and November (73%).
Average rainfall in December
Perth Amboy, NJ
- Average rainfall in December: 3.31"
The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Perth Amboy, NJ
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Perth Amboy, NJ
- Average snowfall in December: 1.34"
The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Perth Amboy, NJ
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Perth Amboy, NJ
- Average sea temperature in December: 47.2°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight in December /
Average sunshine in December
Perth Amboy, 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 18min).
- Average sunshine in December: 4h and 5min
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 42min).
Average sunshine days in December
Perth Amboy, NJ
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in December
Perth Amboy, 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
Perth Amboy, NJ
- Average cloud cover in December: 48
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Perth Amboy, 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).
Perth Amboy, New Jersey, USA
Weather forecast for your location
2. Allow the app to use your location
