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May Weather in Glen Lyon, United States

Last updated: June 24, 2025

In May, the average temperature in Glen Lyon, United States hovers around 15°C (60°F). Temperatures can vary significantly, with a minimum of -2°C (29°F) and a maximum reaching 31°C (88°F). Expect a precipitation amount of 122 mm (4.8 in) spread over 14 days, coupled with an average humidity level of 75%.

May Temperature in Glen Lyon

In May in Glen Lyon, the average temperature is 15°C (60°F), with maximums reaching 31°C (88°F) and minimums dipping as low as -2°C (29°F). This varied climate makes it essential for travelers to pack layers and be prepared for both warm days and chilly nights.

May Weather in Glen Lyon: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Glen Lyon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glen Lyon, May typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec283237485968737165554034
Data source: Temperature data for Glen Lyon 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 Glen Lyon

In Glen Lyon in May, the total precipitation amount is 122 mm (4.8 in) over the course of 14 days.

May Precipitation Trends in Glen Lyon

The chart displays monthly precipitation patterns in Glen Lyon, 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 Glen Lyon, May typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec719688102122951181211021148783
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Glen Lyon

In Glen Lyon in May, humidity is 75%. With an average temperature of 15°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities slightly uncomfortable and requiring extra hydration while exploring the sights.

May Average Humidity in Glen Lyon

This chart illustrates the average monthly humidity levels in Glen Lyon, 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 Glen Lyon is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%85%83%75%74%65%62%66%79%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Glen Lyon

In Glen Lyon 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 Glen Lyon.

Maximum UV Index Levels in Glen Lyon for May

The chart shows the monthly maximum UV Index (UVI) for Glen Lyon 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 Glen Lyon typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Glen Lyon 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 Glen Lyon Compares to Other Months

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

This table compares monthly weather conditions in Glen Lyon, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)71 mm (2.8 inches)87%moderate
February Weather0°C (32°F)96 mm (3.8 inches)85%moderate
March Weather3°C (38°F)88 mm (3.5 inches)85%high
April Weather9°C (49°F)102 mm (4.0 inches)83%very high
May Weather15°C (60°F)122 mm (4.8 inches)75%very high
June Weather20°C (68°F)95 mm (3.7 inches)73%very high
July Weather23°C (74°F)118 mm (4.6 inches)65%very high
August Weather22°C (72°F)121 mm (4.8 inches)62%very high
September Weather18°C (65°F)102 mm (4.0 inches)66%very high
October Weather13°C (55°F)114 mm (4.5 inches)79%high
November Weather5°C (41°F)87 mm (3.4 inches)87%moderate
December Weather1°C (34°F)83 mm (3.3 inches)85%low

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