December weather forecast and climate
Bellvale, NY

The first month of the winter, December, is also a wintry month in Bellvale, New York, with average temperature ranging between max 38.8°F (3.8°C) and min 27.1°F (-2.7°C).

Temperature

In Bellvale, the average high-temperature decreases, from a frosty 48.6°F (9.2°C) in November, to a cold 38.8°F (3.8°C). The average low-temperature, in Bellvale, is 27.1°F (-2.7°C).

Humidity

Months with the highest humidity are February, October and December, with an average relative humidity of 81%.

Rainfall

In Bellvale, it is raining for 7.5 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, in Bellvale, there are 131.1 rainfall days, and 13.31" (338mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Bellvale, snow falls for 4.5 days, with typically accumulated 1.18" (30mm) of snow. Throughout the year, in Bellvale, there are 25.8 snowfall days, and 6.89" (175mm) of snow is accumulated.

Daylight

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

Sunshine

In Bellvale, New York, the average sunshine in December is 4.7h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Bellvale. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Bellvale?

In December, in Bellvale, New York, the average high-temperature is 38.8°F (3.8°C), and the average low-temperature is 27.1°F (-2.7°C).

What is the most humid month in Bellvale?

Months with the highest humidity are February, October and December, with an average relative humidity of 81%.

What is the average humidity in December in Bellvale?

In December, the average relative humidity is 81%.

How many days does it rain in December in Bellvale?

In December, in Bellvale, New York, the rain falls for 7.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How many days does it snow in December in Bellvale?

In Bellvale, New York, during December, snow falls for 4.5 days and regularly aggregates up to 1.18" (30mm) of snow.

What is the month with the shortest days in Bellvale?

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

How many hours of daylight does Bellvale have in December?

In Bellvale, the average length of the day in December is 9.3h.

How many hours of sunshine does Bellvale have in December?

In Bellvale, the average sunshine in December is 4.7h.

What is the month with the lowest UV index in Bellvale?

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

What is the UV index intensity in December in Bellvale?

In Bellvale, New York, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Bellvale, NY
  • Average high temperature in December: 3.8°C

The warmest month (with the highest average high temperature) is July (28.3°C).
The month with the lowest average high temperature is January (0.7°C).

  • Average low temperature in December: -2.7°C

The month with the highest average low temperature is July (16.7°C).
The coldest month (with the lowest average low temperature) is January (-6.4°C).

Average pressure in December - Bellvale, NY
  • Average pressure in December: 1018.4mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in December - Bellvale, NY
  • Average wind speed in December: 10.9km/h

The windiest months (with the highest average wind speed) are January and March (12km/h).
The calmest month (with the lowest average wind speed) is August (7.6km/h).

Average humidity in December - Bellvale, NY
  • Average humidity in December: 81%

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

Average rainfall in December - Bellvale, NY
  • Average rainfall in December: 29mm

The wettest month (with the highest rainfall) is July (45mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in December - Bellvale, NY
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in December - Bellvale, NY
  • Average snowfall in December: 30mm

The month with the highest snowfall is March (43mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Bellvale, NY
  • Average snowfall days in December: 4.5 days

The month with the highest number of snowfall days is February (7.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Bellvale, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.7h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 4.4h).

Average sunshine days in December - Bellvale, NY
  • Average sunshine days in December: 19.2 days

Months with the most sunshine days are January and November (20.4 days).
The month with the least sunshine days is June (12.5 days).

Average UV index in December - Bellvale, NY
  • Average UV index in December: 2

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

Average cloud cover in December - Bellvale, NY
  • Average cloud cover in December: 50

The month with the most cloud cover is February (Cloud cover 51).
Months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in December - Bellvale, NY
  • Average visibility in December: 8km

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