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May Weather in Grayson, United States

Last updated: June 24, 2025

In Grayson, United States, the average temperature in May hovers around 19°C (67°F), with temperatures ranging from a chilly 0°C (33°F) to a warm 33°C (92°F). Expect about 130 mm (5.1 in) of precipitation spread over 15 days, contributing to an average humidity of 81%. Prepare for a mix of cool and warm weather this month!

May Temperature in Grayson

In May in Grayson, the average temperature is 19°C (67°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 0°C (33°F). This makes Grayson a versatile destination for travelers, offering mild days and cool nights perfect for outdoor exploration.

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

The chart illustrates May temperature patterns in Grayson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grayson, May typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec364148566673787570604541
Data source: Temperature data for Grayson 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 Grayson

In Grayson in May, the total precipitation amount is 130 mm (5.1 in) over the course of 15 days.

May Precipitation Trends in Grayson

The chart displays monthly precipitation patterns in Grayson, 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 Grayson, May typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec9313211012513017511814011311374118
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Grayson

In Grayson in May humidity is 81%. With an average temperature of 19°C (67°F), this humidity feels like a heavy blanket enveloping you, making travel somewhat uncomfortable as sweat clings to your skin and the air feels thick, prompting you to seek shade and hydration frequently.

May Average Humidity in Grayson

This chart illustrates the average monthly humidity levels in Grayson, 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 Grayson is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Grayson

In Grayson 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 Grayson.

Maximum UV Index Levels in Grayson for May

The chart shows the monthly maximum UV Index (UVI) for Grayson 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 Grayson typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Grayson 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 Grayson Compares to Other Months

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

This table compares monthly weather conditions in Grayson, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)93 mm (3.7 inches)88%moderate
February Weather5°C (41°F)132 mm (5.2 inches)88%moderate
March Weather9°C (48°F)110 mm (4.3 inches)87%high
April Weather13°C (56°F)125 mm (4.9 inches)85%very high
May Weather19°C (67°F)130 mm (5.1 inches)81%very high
June Weather23°C (73°F)175 mm (6.9 inches)82%very high
July Weather25°C (78°F)118 mm (4.6 inches)81%very high
August Weather24°C (75°F)140 mm (5.5 inches)73%very high
September Weather21°C (71°F)113 mm (4.4 inches)73%very high
October Weather16°C (60°F)113 mm (4.4 inches)78%high
November Weather7°C (46°F)74 mm (2.9 inches)89%moderate
December Weather5°C (41°F)118 mm (4.6 inches)87%moderate

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