Syracuse
New York, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Syracuse, NY

A water fountain in Clinton Square in Syracuse, New York, with a view of towering historical buildings
A water fountain in Clinton Square in Syracuse, New York, with a view of towering historical buildings
The first month of the winter, Diciembre, is still a cold month in Syracuse, New York, with average temperature varying between 22.5°F (-5.3°C) and 36.3°F (2.4°C).

Temperature

In Diciembre, the average high-temperature decreases, from a chilly 48.4°F (9.1°C) in Noviembre, to a cold 36.3°F (2.4°C). In Diciembre, the average low-temperature is 22.5°F (-5.3°C).

Humidity

The most humid month in Syracuse is Diciembre, with an average relative humidity of 76.8%.

Rainfall

In Syracuse, during 18.6 rainfall days, 3.22" (81.8mm) of precipitation is typically accumulated. In Syracuse, during the entire year, the rain falls for 173.6 days and collects up to 38.47" (977.2mm) of precipitation.

Snowfall

Months with snowfall are Enero through Mayo, Octubre through Diciembre. In Diciembre, it is snowing for 14.7 days. Throughout Diciembre, 32.7" (830.6mm) of snow is accumulated. Throughout the year, in Syracuse, there are 66.4 snowfall days, and 123.8" (3144.5mm) of snow is accumulated.

Daylight

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

Sunshine

The month with the least sunshine in Syracuse is Diciembre, with an average of 2.2h of sunshine.

UV index

Enero and Diciembre, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 Diciembre in Syracuse?

The average high-temperature, in Diciembre, in Syracuse, New York, is 36.3°F (2.4°C), while the average low-temperature is 22.5°F (-5.3°C).

What is the most humid month in Syracuse?

With an average relative humidity of 76.8%, Diciembre is the most humid month in Syracuse.

What is the average humidity in Diciembre in Syracuse?

The average relative humidity in Diciembre is 76.8%.

How many days does it rain in Diciembre in Syracuse?

In Diciembre, the rain falls for 18.6 days. Throughout Diciembre, 3.22" (81.8mm) of precipitation is accumulated.

How many days does it snow in Diciembre in Syracuse?

In Syracuse, in Diciembre, snow falls for 14.7 days, with typically accumulated 32.7" (830.6mm) of snow.

What is the month with the shortest days in Syracuse?

Diciembre has the shortest days of the year in Syracuse, with an average of 9.1h of daylight.

How many hours of daylight does Syracuse have in Diciembre?

The average length of the day in Diciembre in Syracuse, New York, is 9.1h.

What is the month with the least sunshine in Syracuse?

With an average of 2.2h of sunshine, Diciembre has the least sunshine of the year in Syracuse.

How long on average sun shines in Diciembre in Syracuse?

In Diciembre, the average sunshine in Syracuse is 2.2h.

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

Months with the lowest UV index in Syracuse, New York, are Enero and Diciembre, with an average maximum UV index of 1.

What is the UV index reading in Diciembre in Syracuse?

In Syracuse, the average daily maximum UV index in Diciembre is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Syracuse, NY
  • Average high temperature in December: 36.4°F

The warmest month (with the highest average high temperature) is July (81.6°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 22.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (15.7°F).

Average humidity in December - Syracuse, NY
  • Average humidity in December: 76.8%

The month with the highest relative humidity is December (76.8%).
The month with the lowest relative humidity is April (65.2%).

Average rainfall in December - Syracuse, NY
  • Average rainfall in December: 3.2"

The wettest month (with the highest rainfall) is July (3.8").
The driest month (with the lowest rainfall) is February (2.1").

Average rainfall days in December - Syracuse, NY
  • Average rainfall days in December: 18.6 days

The month with the highest number of rainy days is January (19.1 days).
The month with the lowest number of rainy days is August (10.8 days).

Average snowfall in December - Syracuse, NY
  • Average snowfall in December: 32.7"

The month with the highest snowfall is January (34").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in December - Syracuse, NY
  • Average snowfall days in December: 14.7 days

The month with the highest number of snowfall days is January (18.4 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

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

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

  • Average sunshine in December: 2.2h

The month with most sunshine is July (Average sunshine: 9.3h).
The month with least sunshine is December (Average sunshine: 2.2h).

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

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