January Weather in Syracuse, United States

Last updated: June 24, 2025

In January, the average temperature in Syracuse, United States hovers around -3°C (27°F). However, be prepared for a temperature range that can dip to a chilly -29°C (-21°F) and peak at a milder 16°C (61°F). During this month, expect about 33 mm (1.3 in) of precipitation over 5 days, along with an average humidity level of 76%. Stay warm and enjoy the winter wonderland!

January Temperature in Syracuse

In January in Syracuse, the average temperature is -3°C (27°F), with maximums reaching 16°C (61°F) and minimums plunging to -29°C (-21°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

January Weather in Syracuse: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Syracuse, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Syracuse, January typically has an average temperature of -3°C (27°F), with highs reaching up to 16°C (61°F) and lows dropping to around -29°C (-21°F).

Data source: Temperature data for Syracuse generated using information from the Copernicus Climate Change Service.

January Precipitation in Syracuse

In Syracuse in January, the precipitation amount is 33 mm (1.3 in) over the course of 5 days.

January Precipitation Trends in Syracuse

The chart displays monthly precipitation patterns in Syracuse, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Syracuse, January typically receives around 33 mm (1.3 inches) of precipitation spread over approximately 5 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Syracuse

In Syracuse in January, humidity is 76%. With an average temperature of -3°C (27°F), this humidity feels like a chilly dampness that seeps into your bones, making it essential to bundle up when traveling outdoors.

January Average Humidity in Syracuse

This chart illustrates the average monthly humidity levels in Syracuse, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Syracuse is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Syracuse

In Syracuse in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Syracuse, you can check the information here.

Maximum UV Index Levels in Syracuse for January

The chart shows the monthly maximum UV Index (UVI) for Syracuse in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Syracuse typically reaches 3, which falls under the moderate exposure category.

Data source: Syracuse January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Syracuse Compares to Other Months

Weather in Syracuse varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Syracuse, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Syracuse, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	33 mm (1.3 inches)	76%	moderate
February Weather	-3°C (27°F)	30 mm (1.2 inches)	80%	moderate
March Weather	6°C (43°F)	96 mm (3.8 inches)	73%	high
April Weather	11°C (52°F)	53 mm (2.1 inches)	74%	very high
May Weather	18°C (64°F)	144 mm (5.7 inches)	78%	very high
June Weather	25°C (77°F)	116 mm (4.6 inches)	82%	very high
July Weather	26°C (79°F)	100 mm (3.9 inches)	83%	very high
August Weather	24°C (75°F)	91 mm (3.6 inches)	80%	very high
September Weather	21°C (71°F)	92 mm (3.6 inches)	75%	very high
October Weather	12°C (54°F)	138 mm (5.4 inches)	75%	high
November Weather	5°C (41°F)	28 mm (1.1 inches)	82%	moderate
December Weather	0°C (33°F)	34 mm (1.3 inches)	83%	moderate