May Weather in Keysville, United States

Last updated: June 24, 2025

In Keysville, United States, the average temperature in May is a pleasant 20°C (69°F). Temperatures can vary significantly, with a minimum of 2°C (36°F) and a maximum reaching 36°C (97°F). Expect 112 mm (4.4 in) of precipitation spread over approximately 12 days, accompanied by an average humidity level of 82%, making it a humid yet comfortable time of year.

May Temperature in Keysville

In May in Keysville, the average temperature is 20°C (69°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 2°C (36°F). This variation in temperature makes Keysville an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Keysville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Keysville, May typically has an average temperature of 20°C (69°F), with highs reaching up to 36°C (97°F) and lows dropping to around 2°C (36°F).

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

May Precipitation in Keysville

In Keysville in May, the total precipitation amount is 112 mm (4.4 in), falling over the course of 12 days.

May Precipitation Trends in Keysville

The chart displays monthly precipitation patterns in Keysville, 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 Keysville, May typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 12 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 Keysville

In Keysville in May humidity is 82%. With an average temperature of 20°C (69°F), this humidity feels like a warm, sticky embrace that clings to your skin, making it necessary to stay hydrated while exploring the sights.

May Average Humidity in Keysville

This chart illustrates the average monthly humidity levels in Keysville, 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 Keysville is approximately 82%, 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 Keysville

In Keysville 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 Keysville.

Maximum UV Index Levels in Keysville for May

The chart shows the monthly maximum UV Index (UVI) for Keysville 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 Keysville typically reaches 11, which falls under the extreme exposure category.

Data source: Keysville 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 Keysville Compares to Other Months

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

This table compares monthly weather conditions in Keysville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	73 mm (2.9 inches)	84%	moderate
February Weather	8°C (46°F)	104 mm (4.1 inches)	84%	high
March Weather	10°C (51°F)	72 mm (2.8 inches)	84%	high
April Weather	16°C (60°F)	113 mm (4.4 inches)	82%	very high
May Weather	20°C (69°F)	112 mm (4.4 inches)	82%	extreme
June Weather	24°C (76°F)	110 mm (4.3 inches)	83%	very high
July Weather	27°C (81°F)	79 mm (3.1 inches)	79%	very high
August Weather	26°C (78°F)	121 mm (4.8 inches)	77%	very high
September Weather	23°C (73°F)	99 mm (3.9 inches)	75%	very high
October Weather	18°C (64°F)	116 mm (4.6 inches)	81%	high
November Weather	10°C (50°F)	79 mm (3.1 inches)	87%	moderate
December Weather	7°C (44°F)	97 mm (3.8 inches)	85%	moderate