December weather forecast
Niagara Falls, NY

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The glorious Niagara Falls in New York
The glorious Niagara Falls in New York

Weather in December

As the last month of the year, December in Niagara Falls, New York, is dominated by winter. The month is synonymous with the holiday season and witnesses a further decline in temperatures compared to November, with highs of around 36.8°F (2.7°C) and lows dipping to as low as 21.8°F (-5.7°C). The texture of the weather is beautifully offset by the city's festive spirit, as everything from landscapes to cityscapes become canvasses of the winter wonderland under the snow blankets.

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from a chilly 48.2°F (9°C) in November to an icy 36.9°F (2.7°C). Niagara Falls observes an average nighttime low-temperature of 21.7°F (-5.7°C) during the month of December.

Rainfall

In Niagara Falls, in December, during 17.1 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Niagara Falls, during the entire year, the rain falls for 158.7 days and collects up to 34.96" (888mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Niagara Falls, in December, snow falls for 11.9 days, with typically accumulated 18.19" (462mm) of snow. In Niagara Falls, during the entire year, snow falls for 52.8 days and aggregates up to 76.1" (1933mm) of snow.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:28 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:51 pm EST.

Sunshine

December has the least sunshine of the year, with an average of 2h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 1 during December translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

How cold is it in December?

The high-temperature during December is 36.9°F (2.7°C) and the low-temperature is 21.7°F (-5.7°C).

How many days does it rain in December?

In Niagara Falls, during December, the rain falls for 17.1 days and regularly aggregates up to 3.23" (82mm) of precipitation.

How much does it snow in December?

In Niagara Falls, in December, snow falls for 11.9 days, with typically accumulated 18.19" (462mm) of snow.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Niagara Falls have in December?

In Niagara Falls, the average day length in December is 9h and 4min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 4:51 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 2h of sunshine.

How many hours of sunshine does Niagara Falls have in December?

In Niagara Falls, the average sunshine duration in December is 2h.

What are the months with the lowest UV index?

The months with the lowest UV index are January and December, with an average maximum UV index of 1.

What is the UV index intensity in December?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average UV index

Average temperature in December
Niagara Falls, NY

Average temperature in December - Niagara Falls, NY
  • Average high temperature in December: 36.8°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 (32.1°F).

  • Average low temperature in December: 21.8°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average rainfall in December
Niagara Falls, NY

Average rainfall in December - Niagara Falls, NY
  • Average rainfall in December: 3.2"

The wettest months (with the highest rainfall) are September and November (3.4").
The driest month (with the least rainfall) is February (2.2").

Average rainfall days in December
Niagara Falls, NY

Average rainfall days in December - Niagara Falls, NY
  • Average rainfall days in December: 17.1 days

The month with the highest number of rainy days is January (19.2 days).
The month with the least rainy days is August (9.8 days).

Average snowfall in December
Niagara Falls, NY

Average snowfall in December - Niagara Falls, NY
  • Average snowfall in December: 18.2"

The month with the highest snowfall is January (23.6").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Niagara Falls, NY

Average snowfall days in December - Niagara Falls, NY
  • Average snowfall days in December: 11.9 days

The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Niagara Falls, NY

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h

The months with the most sunshine are June and July (Average sunshine: 9h).
The month with the least sunshine is December (Average sunshine: 2h).

Average UV index in December
Niagara Falls, NY

Average UV index in December - Niagara Falls, NY
  • Average UV index in December: 1

The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are January and December (UV index 1).

Niagara Falls, New York, USA

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