December weather forecast and climate
Wyckoff, NY

The first month of the winter, December, is also a wintry month in Wyckoff, New York, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 34.5°F (1.4°C).

Temperature

In December, the average high-temperature drops, from a frosty 44.8°F (7.1°C) in November, to a wintry 34.5°F (1.4°C). The average low-temperature, in Wyckoff, is 25.7°F (-3.5°C).

Humidity

In December, the average relative humidity in Wyckoff, New York, is 85%.

Rainfall

In Wyckoff, during 5.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. In Wyckoff, during the entire year, the rain falls for 115.7 days and collects up to 11.06" (281mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Wyckoff. In December, it is snowing for 12.2 days. Throughout December, 1.85" (47mm) of snow is accumulated. In Wyckoff, during the entire year, snow falls for 61.9 days, and aggregates up to 12.95" (329mm) of snow.

Daylight

With an average of 9.1h of daylight, December has the shortest days of the year in Wyckoff.

Sunshine

In December, the average sunshine in Wyckoff is 3h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 1 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Wyckoff?

In Wyckoff, in December, the average high-temperature is 34.5°F (1.4°C), and the average low-temperature is 25.7°F (-3.5°C).

What is the average humidity in December in Wyckoff?

In December, the average relative humidity in Wyckoff is 85%.

How much does it rain in Wyckoff in December?

In Wyckoff, New York, in December, during 5.5 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

How much does it snow in Wyckoff in December?

In December, in Wyckoff, New York, it is snowing for 12.2 days. Throughout December, 1.85" (47mm) of snow is accumulated.

What is the month with the shortest days in Wyckoff?

The month with the shortest days in Wyckoff is December, with an average of 9.1h of daylight.

How many hours of daylight does Wyckoff have in December?

The average length of the day in December in Wyckoff, New York, is 9.1h.

How many hours of sunshine does Wyckoff have in December?

In December, the average sunshine in Wyckoff is 3h.

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

Months with the lowest UV index in Wyckoff, New York, are January, February and December, with an average maximum UV index of 1.

What is the UV index reading in December in Wyckoff?

In December, the average daily maximum UV index in Wyckoff, New York, is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Wyckoff, NY
  • Average high temperature in December: 34.5°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in December - Wyckoff, NY
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed in December - Wyckoff, NY
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in December - Wyckoff, NY
  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
Months with the lowest relative humidity are April and May (79%).

Average rainfall in December - Wyckoff, NY
  • Average rainfall in December: 0.75"

The wettest months (with the highest rainfall) are May and June (1.22").
The driest months (with the least rainfall) are January and September (0.67").

Average rainfall days in December - Wyckoff, NY
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (3.9 days).

Average snowfall in December - Wyckoff, NY
  • Average snowfall in December: 1.85"

The month with the highest snowfall is February (3.07").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in December - Wyckoff, NY
  • Average snowfall days in December: 12.2 days

The month with the highest number of snowfall days is February (14.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Wyckoff, NY
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 3h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 2.5h).

Average sunshine days in December - Wyckoff, NY
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (12.7 days).

Average UV index in December - Wyckoff, NY
  • Average UV index in December: 1

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December - Wyckoff, NY
  • Average cloud cover in December: 70

The month with the most cloud cover is February (Cloud cover 74).
Months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in December - Wyckoff, NY
  • Average visibility in December: 6mi

Months with the highest visibility are April, May, June, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March and July (5mi).