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May Weather in Fresno, United States

Last updated: June 24, 2025

In Fresno, United States, the average temperature in May hovers around 22°C (72°F). Expect a minimum chill of 8°C (47°F) and the potential for a scorching maximum of 42°C (107°F). During this month, average precipitation reaches 23 mm (0.9 in), typically spread over 2 days, with an average humidity level of 58%. Stay prepared for the variations!

May Temperature in Fresno

In May in Fresno, the average temperature is 22°C (72°F). Maximums can reach 42°C (107°F), while minimums can drop as low as 8°C (47°F). It's advisable to pack both light clothing for the warm days and warmer layers for the cooler evenings.

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

The chart illustrates May temperature patterns in Fresno, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fresno, May typically has an average temperature of 22°C (72°F), with highs reaching up to 42°C (107°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec505257647281888679675749
Data source: Temperature data for Fresno 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 Fresno

In Fresno in May, the precipitation amount is 23 mm (0.9 in) over a span of 2 days.

May Precipitation Trends in Fresno

The chart displays monthly precipitation patterns in Fresno, 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 Fresno, May typically receives around 23 mm (0.9 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec87739338231001143969
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Fresno

In Fresno in May, humidity is 58%. With an average temperature of 22°C (72°F), this humidity feels like a warm, slightly muggy embrace, making it ideal for leisurely strolls but a bit uncomfortable for strenuous outdoor activities.

May Average Humidity in Fresno

This chart illustrates the average monthly humidity levels in Fresno, 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 Fresno is approximately 58%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%85%80%72%58%49%36%30%42%59%78%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Fresno

In Fresno 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 Fresno.

Maximum UV Index Levels in Fresno for May

The chart shows the monthly maximum UV Index (UVI) for Fresno 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 Fresno typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109743
Data source: Fresno 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 Fresno Compares to Other Months

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

This table compares monthly weather conditions in Fresno, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)87 mm (3.4 inches)82%moderate
February Weather11°C (53°F)73 mm (2.9 inches)85%moderate
March Weather14°C (57°F)93 mm (3.6 inches)80%very high
April Weather18°C (65°F)38 mm (1.5 inches)72%very high
May Weather22°C (72°F)23 mm (0.9 inches)58%very high
June Weather27°C (82°F)1 mm (0.0 inches)49%extreme
July Weather31°C (88°F)0 mm (0.0 inches)36%extreme
August Weather30°C (86°F)0 mm (0.0 inches)30%very high
September Weather26°C (79°F)1 mm (0.0 inches)42%very high
October Weather20°C (67°F)14 mm (0.6 inches)59%high
November Weather14°C (57°F)39 mm (1.5 inches)78%moderate
December Weather10°C (50°F)69 mm (2.7 inches)79%moderate

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