December weather forecast and climate
Amsterdam, NJ

December, the first month of the winter, in Amsterdam, is also a wintry month, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 40.3°F (4.6°C).

Temperature

In Amsterdam, the average high-temperature in December decreases, from a fresh 50°F (10°C) in November, to a wintry 40.3°F (4.6°C). The average low-temperature, in Amsterdam, is 28.9°F (-1.7°C).

Humidity

In Amsterdam, the average relative humidity is 80%.

Rainfall

In Amsterdam, during December, the rain falls for 8.5 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Amsterdam, during the entire year, the rain falls for 124.4 days and collects up to 13.39" (340mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Amsterdam. In Amsterdam, New Jersey, in December, snow falls for 3.3 days, with typically accumulated 1.1" (28mm) of snow. Throughout the year, there are 22 snowfall days, and 5" (127mm) of snow is accumulated.

Daylight

The month with the shortest days in Amsterdam is December, with an average of 9.3h of daylight.

Sunshine

In Amsterdam, the average sunshine in December is 4.8h.

UV index

Months with the lowest UV index in Amsterdam are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Amsterdam?

The average high-temperature, in December, in Amsterdam, New Jersey, is 40.3°F (4.6°C), while the average low-temperature is 28.9°F (-1.7°C).

What is the average humidity in December in Amsterdam?

In December, the average relative humidity in Amsterdam, New Jersey, is 80%.

How much does it rain in Amsterdam in December?

In December, in Amsterdam, the rain falls for 8.5 days. Throughout December, 1.1" (28mm) of precipitation is accumulated.

How much does it snow in Amsterdam in December?

In Amsterdam, in December, during 3.3 snowfall days, 1.1" (28mm) of snow is typically accumulated.

What is the month with the shortest days in Amsterdam?

December has the shortest days of the year in Amsterdam, with an average of 9.3h of daylight.

How many hours of daylight does Amsterdam have in December?

The average length of the day in December in Amsterdam, New Jersey, is 9.3h.

How long on average sun shines in December in Amsterdam?

In December, the average sunshine is 4.8h.

When is the lowest UV index in Amsterdam?

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Amsterdam?

In December, the average daily maximum UV index in Amsterdam is 2. A UV Index value of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Amsterdam, NJ
  • Average high temperature in December: 4.6°C

The warmest month (with the highest average high temperature) is July (28.5°C).
The month with the lowest average high temperature is January (1.3°C).

  • Average low temperature in December: -1.7°C

The month with the highest average low temperature is July (17.7°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).

Average pressure in December - Amsterdam, NJ
  • Average pressure in December: 1018.9mbar

The month with the highest atmospheric pressure is November (1019.9mbar).
The month with the lowest atmospheric pressure is June (1013.8mbar).

Average wind speed in December - Amsterdam, NJ
  • Average wind speed in December: 12km/h

The windiest month (with the highest average wind speed) is March (13.1km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).

Average humidity in December - Amsterdam, NJ
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
Months with the lowest relative humidity are April and July (76%).

Average rainfall in December - Amsterdam, NJ
  • Average rainfall in December: 28mm

The wettest month (with the highest rainfall) is July (42mm).
The driest month (with the least rainfall) is September (18mm).

Average rainfall days in December - Amsterdam, NJ
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in December - Amsterdam, NJ
  • Average snowfall in December: 28mm

The month with the highest snowfall is February (36mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Amsterdam, NJ
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is February (6.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Amsterdam, NJ
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.8h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

Average sunshine days in December - Amsterdam, NJ
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (14 days).

Average UV index in December - Amsterdam, NJ
  • Average UV index in December: 2

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December - Amsterdam, NJ
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December - Amsterdam, NJ
  • Average visibility in December: 9km

Months with the highest visibility are January, March, April, November and December (9km).
Months with the lowest visibility are February, May, June, July, August, September and October (8km).