May Weather in Syracuse, United States

Last updated: June 24, 2025

In Syracuse, United States, the average temperature in May is a mild 16°C (62°F). However, be prepared for a temperature range where it can dip as low as -2°C (29°F) or soar up to 34°C (94°F). During this month, you can expect about 133 mm (5.2 in) of precipitation over 15 days, accompanied by an average humidity of 81%. Whether you're packing for the chill or the heat, it's wise to plan for variable weather!

May Temperature in Syracuse

In May in Syracuse, the average temperature is 16°C (62°F). Maximum temperatures can reach 34°C (94°F), while minimums can drop as low as -2°C (29°F). Be sure to pack layers to accommodate the wide temperature range during your travels!

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

The chart illustrates May 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, May typically has an average temperature of 16°C (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).

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

May Precipitation in Syracuse

In Syracuse in May, the total precipitation amount is 133 mm (5.2 in) spread over a duration of 15 days.

May Precipitation Trends in Syracuse

The chart displays monthly precipitation patterns in Syracuse, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Syracuse, May typically receives around 133 mm (5.2 inches) of precipitation spread over approximately 15 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Syracuse

In Syracuse in May, humidity is 81%. With an average temperature of 16°C (62°F), this humidity feels like a warm embrace that can quickly leave travelers feeling sticky and drained, making outdoor adventures a bit challenging unless they stay properly hydrated and take breaks in the shade.

May Average Humidity in Syracuse

This chart illustrates the average monthly humidity levels in Syracuse, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Syracuse is approximately 81%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Syracuse

In Syracuse in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Syracuse.

Maximum UV Index Levels in Syracuse for May

The chart shows the monthly maximum UV Index (UVI) for Syracuse in May, 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 May, the maximum UV index in Syracuse typically reaches 9, which falls under the very high exposure category.

Data source: Syracuse May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (28°F)	71 mm (2.8 inches)	85%	moderate
February Weather	-2°C (29°F)	75 mm (3.0 inches)	85%	moderate
March Weather	4°C (39°F)	103 mm (4.1 inches)	86%	high
April Weather	9°C (49°F)	98 mm (3.9 inches)	87%	very high
May Weather	16°C (62°F)	133 mm (5.2 inches)	81%	very high
June Weather	22°C (72°F)	121 mm (4.8 inches)	82%	very high
July Weather	24°C (75°F)	117 mm (4.6 inches)	81%	very high
August Weather	22°C (73°F)	105 mm (4.1 inches)	79%	very high
September Weather	19°C (67°F)	76 mm (3.0 inches)	78%	very high
October Weather	13°C (55°F)	121 mm (4.8 inches)	81%	high
November Weather	4°C (40°F)	80 mm (3.2 inches)	89%	moderate
December Weather	1°C (34°F)	61 mm (2.4 inches)	86%	moderate