May Weather in Quincy, United States

Last updated: June 24, 2025

In Quincy, United States, the average temperature in May reaches a comfortable 24°C (76°F). However, be prepared for a range of temperatures, with lows of 9°C (49°F) and highs soaring to 38°C (101°F). Expect about 82 mm (3.2 in) of precipitation spread over 10 days, contributing to an average humidity level of 73%.

May Temperature in Quincy

In May in Quincy, the average temperature is 24°C (76°F). Maximums can reach 38°C (101°F), and minimums can be as low as 9°C (49°F). This makes it an ideal time for travelers to enjoy a range of activities, from warm, sunny days to cooler evenings.

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 24°C (76°F), with highs reaching up to 38°C (101°F) and lows dropping to around 9°C (49°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 total precipitation amount is 82 mm (3.2 in) observed over a span of 10 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 82 mm (3.2 inches) of precipitation spread over approximately 10 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 73%. With an average temperature of 24°C (76°F), this humidity feels like a warm and sticky embrace, making travel slightly uncomfortable as the air thickens around you, prompting you to seek shade and stay hydrated.

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 73%, 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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check 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 11, which falls under the extreme 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	12°C (54°F)	77 mm (3.0 inches)	85%	moderate
February Weather	15°C (60°F)	113 mm (4.4 inches)	82%	very high
March Weather	17°C (63°F)	56 mm (2.2 inches)	80%	very high
April Weather	20°C (68°F)	103 mm (4.1 inches)	76%	very high
May Weather	24°C (76°F)	82 mm (3.2 inches)	73%	extreme
June Weather	26°C (80°F)	198 mm (7.8 inches)	74%	extreme
July Weather	27°C (81°F)	194 mm (7.6 inches)	80%	extreme
August Weather	27°C (81°F)	173 mm (6.8 inches)	79%	extreme
September Weather	26°C (79°F)	143 mm (5.6 inches)	83%	very high
October Weather	23°C (73°F)	96 mm (3.8 inches)	77%	very high
November Weather	16°C (60°F)	52 mm (2.1 inches)	84%	high
December Weather	13°C (56°F)	127 mm (5.0 inches)	88%	moderate