May Weather in Quincy, United States

Last updated: June 24, 2025

In Quincy, United States, the average temperature in May hovers around 17°C (63°F), with lows dipping to 3°C (37°F) and highs soaring up to 34°C (94°F). Expect a touch of rain, with 16 mm (0.6 in) of precipitation over approximately 4 days. Humidity stays fairly high, averaging around 77%, which contributes to the overall climate feel of the area.

May Temperature in Quincy

In May in Quincy, the average temperature is 17°C (63°F). Maximums can reach up to 34°C (94°F), and minimums can drop as low as 3°C (37°F). This makes it a great time for travelers to enjoy a mix of warm days and cooler nights while exploring the area.

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

The chart illustrates May temperature patterns in Quincy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Quincy, May typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (94°F) and lows dropping to around 3°C (37°F).

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

May Precipitation in Quincy

In Quincy in May, the precipitation amount is 16 mm (0.6 in) over a span of 4 days.

May Precipitation Trends in Quincy

The chart displays monthly precipitation patterns in Quincy, 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 Quincy, May typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 4 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Quincy

In Quincy in May, humidity is 77%. With an average temperature of 17°C (63°F), this humidity feels like a cozy blanket wrapped around you, creating a muggy atmosphere that can be a bit uncomfortable for traveling, making you want to seek shade and hydration as you explore.

May Average Humidity in Quincy

This chart illustrates the average monthly humidity levels in Quincy, 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 Quincy is approximately 77%, 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 Quincy

In Quincy in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Quincy.

Maximum UV Index Levels in Quincy for May

The chart shows the monthly maximum UV Index (UVI) for Quincy 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 Quincy typically reaches 8, which falls under the very high exposure category.

Data source: Quincy 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 Quincy Compares to Other Months

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

This table compares monthly weather conditions in Quincy, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	48 mm (1.9 inches)	85%	low
February Weather	0°C (32°F)	40 mm (1.6 inches)	86%	moderate
March Weather	6°C (43°F)	27 mm (1.1 inches)	86%	moderate
April Weather	11°C (52°F)	26 mm (1.0 inches)	82%	high
May Weather	17°C (63°F)	16 mm (0.6 inches)	77%	very high
June Weather	21°C (70°F)	7 mm (0.3 inches)	79%	very high
July Weather	25°C (77°F)	1 mm (0.1 inches)	77%	very high
August Weather	24°C (76°F)	3 mm (0.1 inches)	62%	very high
September Weather	18°C (65°F)	14 mm (0.6 inches)	60%	high
October Weather	10°C (50°F)	33 mm (1.3 inches)	80%	moderate
November Weather	4°C (39°F)	39 mm (1.5 inches)	87%	moderate
December Weather	0°C (32°F)	41 mm (1.6 inches)	86%	low