January Weather in Syracuse, United States

Last updated: June 24, 2025

In January, the average temperature in Syracuse, United States hovers around 1°C (34°F), with fluctuations that can see lows of -18°C (-1°F) and highs reaching 22°C (72°F). Expect a precipitation amount of 16 mm (0.6 in) over 3 days, accompanied by an average humidity level of 74%.

January Temperature in Syracuse

In January in Syracuse, the average temperature is 1°C (34°F). The maximum can reach 22°C (72°F) and the minimum can be as low as -18°C (-1°F). Be prepared for a wide range of temperatures and pack accordingly for your visit.

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 1°C (34°F), with highs reaching up to 22°C (72°F) and lows dropping to around -18°C (-1°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 16 mm (0.6 in), spread over a duration of 3 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 16 mm (0.6 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Syracuse

In Syracuse in January humidity is 74%. With average temperature 1°C (34°F), this humidity feels like a chilling blanket enveloping you, making it uncomfortable for traveling as you navigate through the damp air, leaving you feeling colder than the actual temperature suggests.

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 74%, 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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Syracuse for better planning.

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 4, 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	1°C (34°F)	16 mm (0.6 inches)	74%	moderate
February Weather	1°C (34°F)	16 mm (0.6 inches)	77%	moderate
March Weather	8°C (47°F)	38 mm (1.5 inches)	65%	high
April Weather	12°C (54°F)	38 mm (1.5 inches)	67%	very high
May Weather	17°C (63°F)	91 mm (3.6 inches)	81%	extreme
June Weather	24°C (76°F)	48 mm (1.9 inches)	82%	extreme
July Weather	26°C (80°F)	45 mm (1.8 inches)	82%	extreme
August Weather	25°C (77°F)	59 mm (2.3 inches)	84%	extreme
September Weather	22°C (72°F)	37 mm (1.5 inches)	79%	very high
October Weather	13°C (55°F)	28 mm (1.1 inches)	75%	high
November Weather	7°C (45°F)	10 mm (0.4 inches)	79%	moderate
December Weather	3°C (37°F)	16 mm (0.6 inches)	83%	moderate