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May Weather in Clayton, United States

Last updated: June 24, 2025

In May, the average temperature in Clayton, United States hovers around 14°C (58°F). Be prepared for a range of conditions, with temperatures dipping to a chilly -2°C (29°F) and soaring to a sweltering 34°C (94°F). Rainfall is common, with an average precipitation of 135 mm (5.3 in) spread over 11 days, and expect humidity levels to be high at 79%.

May Temperature in Clayton

In May in Clayton, the average temperature is 14°C (58°F). Maximum temperatures can reach 34°C (94°F), while minimums can dip as low as -2°C (29°F). Travelers should be prepared for a wide range of weather conditions, from warm days to chilly nights.

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 14°C (58°F), with highs reaching up to 34°C (94°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec151632425769726962473222
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 135 mm (5.3 in) over the course of 11 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 135 mm (5.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec283956901351101051251021014160
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 79%. With an average temperature of 14°C (58°F), this humidity feels like an oppressive blanket wrapped around you, making even the mild temperatures feel heavier and more stifling for traveling.

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 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
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 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
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 Weather-9°C (16°F)28 mm (1.1 inches)88%low
February Weather-9°C (16°F)39 mm (1.5 inches)89%moderate
March Weather0°C (32°F)56 mm (2.2 inches)86%moderate
April Weather6°C (42°F)90 mm (3.5 inches)85%high
May Weather14°C (58°F)135 mm (5.3 inches)79%very high
June Weather21°C (69°F)110 mm (4.3 inches)80%very high
July Weather22°C (73°F)105 mm (4.1 inches)80%very high
August Weather20°C (69°F)125 mm (4.9 inches)78%very high
September Weather17°C (63°F)102 mm (4.0 inches)80%high
October Weather8°C (47°F)101 mm (4.0 inches)84%moderate
November Weather0°C (32°F)41 mm (1.6 inches)89%moderate
December Weather-6°C (22°F)60 mm (2.3 inches)85%low

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