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May Weather in Clayton, United States

Last updated: June 24, 2025

In Clayton, United States, the average temperature in May hovers around 18°C (64°F), with a range that can dip to a brisk 1°C (34°F) or rise to a warm 29°C (85°F). Expect some rainy days as the area receives about 155 mm (6.1 in) of precipitation over approximately 13 days, accompanied by an average humidity level of 85%.

May Temperature in Clayton

In May in Clayton, the average temperature is 18°C (64°F). Maximum temperatures can reach up to 29°C (85°F), while the minimum can dip as low as 1°C (34°F). It’s advisable to pack layers to prepare for the varying temperatures during your travels.

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

The chart illustrates May temperature patterns in Clayton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clayton, May typically has an average temperature of 18°C (64°F), with highs reaching up to 29°C (85°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec394549566469737268594742
Data source: Temperature data for Clayton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Clayton

In Clayton in May, the precipitation amount is 155 mm (6.1 in) over the course of 13 days.

May Precipitation Trends in Clayton

The chart displays monthly precipitation patterns in Clayton, 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 Clayton, May typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec122196152149155131121160142173101156
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Clayton

In Clayton in May, humidity is 85%. With an average temperature of 18°C (64°F), this humidity feels like a muggy blanket enveloping you, making travel a bit heavy and sticky, as the air clings to your skin and every step can feel like wading through molasses.

May Average Humidity in Clayton

This chart illustrates the average monthly humidity levels in Clayton, 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 Clayton is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Clayton

In Clayton in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Clayton.

Maximum UV Index Levels in Clayton for May

The chart shows the monthly maximum UV Index (UVI) for Clayton 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 Clayton typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111211111110864
Data source: Clayton 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 Clayton Compares to Other Months

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

This table compares monthly weather conditions in Clayton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)122 mm (4.8 inches)86%moderate
February Weather7°C (45°F)196 mm (7.7 inches)86%high
March Weather10°C (49°F)152 mm (6.0 inches)86%very high
April Weather13°C (56°F)149 mm (5.9 inches)82%extreme
May Weather18°C (64°F)155 mm (6.1 inches)85%extreme
June Weather21°C (70°F)131 mm (5.2 inches)85%extreme
July Weather23°C (73°F)121 mm (4.8 inches)83%extreme
August Weather22°C (72°F)160 mm (6.3 inches)76%extreme
September Weather20°C (68°F)142 mm (5.6 inches)76%very high
October Weather15°C (60°F)172 mm (6.8 inches)80%very high
November Weather8°C (47°F)101 mm (4.0 inches)88%high
December Weather6°C (43°F)156 mm (6.2 inches)88%moderate

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