December weather forecast
Swan Lake, NY

Share

Weather in December

The first month of the winter, December, is also an icy month in Swan Lake, New York, with an average temperature varying between 35.6°F (2°C) and 23.9°F (-4.5°C).

Temperature

In Swan Lake, the average high-temperature in December decreases from a chilly 45.3°F (7.4°C) in November to a wintry 35.6°F (2°C). In December, Swan Lake records an average nighttime temperature of 23.9°F (-4.5°C).

Humidity

February and December, with an average relative humidity of 85%, are the most humid months.

Rainfall

In Swan Lake, in December, during 9.8 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 153.7 rainfall days, and 26.73" (679mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Swan Lake. The month with the most snowfall in Swan Lake is December, when snow falls for 8.1 days and typically aggregates up to 5.04" (128mm) of snow.

Daylight

December has the shortest days of the year in Swan Lake, with an average of 9h and 12min of daylight.
On the first day of December in Swan Lake, sunrise is at 7:07 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:38 pm EST.

Sunshine

The average sunshine in December is 4.3h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Swan Lake, New York. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
[Resources]

Frequently asked questions

How cold is December in Swan Lake?

The high-temperature in Swan Lake, New York, during December is 35.6°F (2°C) and the low-temperature is 23.9°F (-4.5°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 86°F (30°C).

What is the most humid month in Swan Lake?

The months with the highest humidity are February and December, with an average relative humidity of 85%.

What is the average humidity in December in Swan Lake?

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

How many days does it rain in December in Swan Lake?

In December, in Swan Lake, the rain falls for 9.8 days. Throughout December, 2.32" (59mm) of precipitation is accumulated.

What is the snowiest month in Swan Lake?

December is the month with the most snowfall in Swan Lake. Snow falls for 8.1 days and accumulates 5.04" (128mm) of snow.

How much does it snow in Swan Lake in December?

In Swan Lake, New York, during December, snow falls for 8.1 days and regularly aggregates up to 5.04" (128mm) of snow.

What is the month with the shortest days in Swan Lake?

With an average of 9h and 12min of daylight, December has the shortest days of the year in Swan Lake, New York.

What is the average length of the day in December in Swan Lake?

In December, the average day length in Swan Lake, New York, is 9h and 13min.

When is the sunrise / sunset in December in Swan Lake?

On the first day of December in Swan Lake, sunrise is at 7:07 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:38 pm EST.

How long on average sun shines in December in Swan Lake?

The average sunshine duration in December in Swan Lake is 4.3h.

What is the month with the lowest UV index in Swan Lake?

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

What is the UV index intensity in December in Swan Lake?

The average daily maximum UV index in December in Swan Lake, New York, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
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
Swan Lake, NY

Average temperature in December - Swan Lake, NY
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

[Resources]

Average pressure in December
Swan Lake, NY

Average pressure in December - Swan Lake, 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).

[Resources]

Average wind speed in December
Swan Lake, NY

Average wind speed in December - Swan Lake, NY
  • Average wind speed in December: 7.1mph

The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

[Resources]

Average humidity in December
Swan Lake, NY

Average humidity in December - Swan Lake, NY
  • Average humidity in December: 85%

The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).

[Resources]

Average rainfall in December
Swan Lake, NY

Average rainfall in December - Swan Lake, NY
  • Average rainfall in December: 2.32"

The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").

[Resources]

Average rainfall days in December
Swan Lake, NY

Average rainfall days in December - Swan Lake, NY
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).

[Resources]

Average snowfall in December
Swan Lake, NY

Average snowfall in December - Swan Lake, NY
  • Average snowfall in December: 5.04"

The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in December
Swan Lake, NY

Average snowfall days in December - Swan Lake, NY
  • Average snowfall days in December: 8.1 days

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in December /
Average sunshine in December
Swan Lake, NY

Average daylight in December / Average sunshine in December - Swan Lake, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

[Resources]

Average sunshine days in December
Swan Lake, NY

Average sunshine days in December - Swan Lake, NY
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).

[Resources]

Average UV index in December
Swan Lake, NY

Average UV index in December - Swan Lake, NY
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

[Resources]

Average cloud cover in December
Swan Lake, NY

Average cloud cover in December - Swan Lake, NY
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).

[Resources]

Average visibility in December
Swan Lake, NY

Average visibility in December - Swan Lake, NY
  • Average visibility in December: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).

[Resources]

Swan Lake, New York, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location