December weather - Winter 2024

Weather in December
Frequently asked questions
Average temperature in December
Average pressure in December
Average wind speed in December
Average humidity in December
Average rainfall in December
Average rainfall days in December
Average snowfall in December
Average snowfall days in December
Average daylight in December
Average sunshine in December
Average sunshine days in December
Average UV index in December
Average cloud cover in December
Average visibility in December

A water fountain in the Clinton Square in Syracuse, New York, with a view of towering historical buildings

Weather in December

December in Syracuse marks the official start of winter, as the temperature plummets to 34.5°F (1.4°C), ushering in the chill of the season. Snowfall becomes a regular visitor, contributing to the year-end festivities. The month, with its limited daylight, hosts the shortest day of the year. Though the sun seems fickle in its appearances, the city prepares for the calm and bitter cold of its journey through winter. As the year draws to a close, snowflakes fill the air in December, setting the stage for a dreamy white holiday season.

Temperature

As November transitions into December, Syracuse sees a drop in the average high-temperature, transitioning from a chilly 44.8°F (7.1°C) to a wintry 34.5°F (1.4°C). In Syracuse, the month of December records an average minimum temperature of 25.5°F (-3.6°C), a slight dip from the daily highs.

Humidity

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

Rainfall

In Syracuse, during December, the rain falls for 9.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 141.4 rainfall days, and 16.57" (421mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The months with the most snowfall in Syracuse are February and December, with an average 3.62" (92mm) of accumulated snow.

Daylight

December has the shortest days of the year in Syracuse, with an average of 9h and 6min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:39 pm EST.

Sunshine

In December, the average sunshine in Syracuse is 2.9h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Syracuse. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, a daily UV index of 1 turns into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. To cut down UV radiation exposure by about half, sport a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.

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Frequently asked questions

How cold is it in Syracuse in December?

An average high-temperature, in December, in Syracuse, is 34.5°F (1.4°C) and the average low-temperature is 25.5°F (-3.6°C).

What is the average humidity in December in Syracuse?

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

How many days does it rain in December in Syracuse?

In December, the rain falls for 9.2 days. Throughout December, 1.26" (32mm) of precipitation is accumulated.

When does it snow the most in Syracuse?

The months with the most snowfall are February and December, with an average 3.62" (92mm) of accumulated snow.

How much does it snow in Syracuse in December?

In Syracuse, New York, during December, snow falls for 14.3 days and regularly aggregates up to 3.62" (92mm) of snow.

What is the month with the shortest days in Syracuse?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

What is the average length of the day in December in Syracuse?

The average day length in December in Syracuse, New York, is 9h and 4min.

When is the sunrise / sunset in December in Syracuse?

On the first day of December in Syracuse, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:39 pm EST.

How long on average sun shines in December in Syracuse?

In Syracuse, the average sunshine duration in December is 2.9h.

What are the months with the lowest UV index in Syracuse?

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

How high is the UV index in December in Syracuse?

The average daily maximum UV index in December in Syracuse is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

44.8°F 7.1°C

34.5°F 1.4°C

28.4°F -2°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10mph 16.1km/h

10.6mph 17.1km/h

11.1mph 17.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

13.9

10.3

9.9

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Syracuse, NY

Average high temperature in December: 34.5°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).

Average low temperature in December: 25.5°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in December
Syracuse, NY

Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Syracuse, NY

Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in December
Syracuse, NY

Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).

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Average rainfall in December
Syracuse, NY

Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").

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Average rainfall days in December
Syracuse, NY

Average rainfall days in December: 9.2 days

The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in December
Syracuse, NY

Average snowfall in December: 3.62"

The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Syracuse, NY

Average snowfall days in December: 14.3 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Syracuse, 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 and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

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Average sunshine days in December
Syracuse, NY

Average sunshine days in December: 10.3 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).

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Average UV index in December
Syracuse, NY

Average UV index in December: 1

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 and December (UV index 1).

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Average cloud cover in December
Syracuse, NY

Average cloud cover in December: 71

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 32).

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Average visibility in December
Syracuse, NY

Average visibility in December: 5mi

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

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December weather forecast
Syracuse, NY

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