December weather forecast
Cottekill, NY

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Weather in December

December, the first month of the winter in Cottekill, is also an icy month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 37.6°F (3.1°C).

Temperature

Arrival of December comes with a reduction in the average high-temperature, falling from a frosty 47.8°F (8.8°C) in November to an icy 37.6°F (3.1°C). During December, Cottekill consistently records a temperature low averaging a subzero cold 25.7°F (-3.5°C).

Humidity

February and December, with an average relative humidity of 82%, are the most humid months.

Rainfall

In December, the rain falls for 9.5 days. Throughout December, 2.24" (57mm) of precipitation is accumulated. In Cottekill, during the entire year, the rain falls for 141.4 days and collects up to 22.44" (570mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 5.8 days. Throughout December, 3.82" (97mm) of snow is accumulated. Throughout the year, in Cottekill, there are 30.6 snowfall days, and 16.38" (416mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:35 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In December, in Cottekill, the average high-temperature is 37.6°F (3.1°C), and the average low-temperature is 25.7°F (-3.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 86°F (30°C).

What is the most humid month?

February and December, with an average relative humidity of 82%, are most humid months.

What is the average humidity in December?

The average relative humidity in December in Cottekill is 82%.

How much does it rain in December?

In December, in Cottekill, the rain falls for 9.5 days. Throughout December, 2.24" (57mm) of precipitation is accumulated.

How much does it snow in December?

In Cottekill, during December, snow falls for 5.8 days and regularly aggregates up to 3.82" (97mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December?

In December, the average day length is 9h and 12min.

What time are sunrise and sunset in December in Cottekill?

On the first day of December, sunrise is at 7:05 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:35 pm EST.

How long on average sun shines in December in Cottekill?

In December, the average sunshine duration is 4.9h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cottekill, NY

Average temperature in December - Cottekill, NY
  • Average high temperature in December: 37.6°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in December
Cottekill, NY

Average pressure in December - Cottekill, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Cottekill, NY

Average wind speed in December - Cottekill, NY
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Cottekill, NY

Average humidity in December - Cottekill, NY
  • Average humidity in December: 82%

The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (74%).

Average rainfall in December
Cottekill, NY

Average rainfall in December - Cottekill, NY
  • Average rainfall in December: 2.24"

The wettest month (with the highest rainfall) is October (2.36").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in December
Cottekill, NY

Average rainfall days in December - Cottekill, NY
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in December
Cottekill, NY

Average snowfall in December - Cottekill, NY
  • Average snowfall in December: 3.82"

The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cottekill, NY

Average snowfall days in December - Cottekill, NY
  • Average snowfall days in December: 5.8 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Cottekill, NY

Average daylight in December / Average sunshine in December - Cottekill, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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 30min).

Average sunshine days in December
Cottekill, NY

Average sunshine days in December - Cottekill, NY
  • Average sunshine days in December: 17.9 days

The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (12.7 days).

Average UV index in December
Cottekill, NY

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

The months with the highest UV index are June and July (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
Cottekill, NY

Average cloud cover in December - Cottekill, NY
  • Average cloud cover in December: 48

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
Cottekill, NY

Average visibility in December - Cottekill, NY
  • Average visibility in December: 5mi

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

Cottekill, New York, USA

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