May Weather in Clay, United States

Last updated: June 24, 2025

In Clay, United States, the weather in May offers a mild average temperature of 18°C (64°F). However, expect fluctuations, with minimums dipping to -1°C (31°F) and maximums soaring to 30°C (87°F). Rain is also a consideration, as the area receives an average precipitation of 171 mm (6.7 in) over 18 days. With an average humidity level of 82%, it’s a month characterized by a mix of warmth and moisture.

May Temperature in Clay

In May in Clay, the average temperature is 18°C (64°F). The maximum can reach 30°C (87°F), and the minimum can be as low as -1°C (31°F). This diverse temperature range means travelers should pack layers to enjoy both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Clay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clay, May typically has an average temperature of 18°C (64°F), with highs reaching up to 30°C (87°F) and lows dropping to around -1°C (31°F).

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

May Precipitation in Clay

In Clay in May, the precipitation amount is 171 mm (6.7 in) over the course of 18 days.

May Precipitation Trends in Clay

The chart displays monthly precipitation patterns in Clay, 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 Clay, May typically receives around 171 mm (6.7 inches) of precipitation spread over approximately 18 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 Clay

In Clay in May humidity is 82%. With an average temperature of 18°C (64°F), this humidity feels like a warm, muggy embrace that can make exploring the area feel stifling, leaving travelers drenched in sweat and longing for respite in the shade.

May Average Humidity in Clay

This chart illustrates the average monthly humidity levels in Clay, 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 Clay 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 Clay

In Clay in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Clay.

Maximum UV Index Levels in Clay for May

The chart shows the monthly maximum UV Index (UVI) for Clay 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 Clay typically reaches 10, which falls under the very high exposure category.

Data source: Clay 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 Clay Compares to Other Months

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

This table compares monthly weather conditions in Clay, 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 (35°F)	107 mm (4.2 inches)	88%	moderate
February Weather	4°C (40°F)	161 mm (6.3 inches)	88%	moderate
March Weather	7°C (46°F)	126 mm (5.0 inches)	88%	high
April Weather	12°C (54°F)	149 mm (5.9 inches)	86%	very high
May Weather	18°C (64°F)	171 mm (6.7 inches)	82%	very high
June Weather	21°C (70°F)	163 mm (6.4 inches)	84%	very high
July Weather	23°C (74°F)	137 mm (5.4 inches)	82%	very high
August Weather	22°C (72°F)	130 mm (5.1 inches)	73%	very high
September Weather	20°C (68°F)	107 mm (4.2 inches)	73%	very high
October Weather	15°C (59°F)	126 mm (5.0 inches)	81%	high
November Weather	7°C (45°F)	87 mm (3.4 inches)	89%	moderate
December Weather	4°C (40°F)	131 mm (5.1 inches)	86%	moderate