December Weather in Syracuse

Last updated: March 2, 2024

The weather in Syracuse, United States, during December is characterized by an average temperature of 3°C (37°F). Highs can soar to 20°C (69°F), while lows may dip to -12°C (11°F). Typically, the humidity level in Syracuse throughout December hovers around 83%.

-12°C (11°F)

Minimum temperature

3°C (37°F)

Average temperature

20°C (69°F)

Maximum temperature

83%

Humidity

Precipitation and Sunshine hours

In December, Syracuse averages 16 mm (0.6 inches) of rainfall, typically over the course of 2 rainy days. The month enjoys an average of 9 hours 33 minutes of daylight, with the sun shining for approximately 8 hours 2 minutes each day. Additionally, there is a 72% probability of sunny days during this period.

16 mm (0.6 inches)

Precipitation

2 rainy days

Rainy days

8 hours 2 minutes

Sunshine hours

72%

Chance of sun

UV Index

In December, the UV Index in Syracuse reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 10:00 and 12:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 3 3 2 2 1 1 0 0 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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