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May Weather in Stockton, United States

Last updated: June 24, 2025

In May, the average temperature in Stockton, United States is a pleasant 17°C (64°F). However, temperatures can vary significantly, with a minimum of 1°C (34°F) and a maximum of 36°C (98°F). Expect about 158 mm (6.2 in) of precipitation spread over 13 days, contributing to an average humidity of 82%. Whether you're enjoying the warmth or bracing for a cool spell, it's a month full of weather surprises!

May Temperature in Stockton

In May in Stockton, the average temperature is 17°C (64°F), with maximums reaching up to 36°C (98°F) and minimums dipping as low as 1°C (34°F). This wide temperature range means travelers should be prepared for both warm days and cool nights.

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

The chart illustrates May temperature patterns in Stockton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stockton, May typically has an average temperature of 17°C (64°F), with highs reaching up to 36°C (98°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec303044536377817771544335
Data source: Temperature data for Stockton 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 Stockton

In Stockton in May, the precipitation amount is 158 mm (6.2 in) over the course of 13 days.

May Precipitation Trends in Stockton

The chart displays monthly precipitation patterns in Stockton, 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 Stockton, May typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec2420673815860748759581832
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Stockton

In Stockton in May, humidity is 82%. With an average temperature of 17°C (64°F), this humidity feels like a damp embrace that can make traveling quite uncomfortable, as the sticky air clings to your skin and leaves you yearning for a cool breeze.

May Average Humidity in Stockton

This chart illustrates the average monthly humidity levels in Stockton, 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 Stockton is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%78%67%70%82%81%80%80%74%71%79%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Stockton

In Stockton 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 Stockton.

Maximum UV Index Levels in Stockton for May

The chart shows the monthly maximum UV Index (UVI) for Stockton 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 Stockton typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Stockton 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 Stockton Compares to Other Months

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

This table compares monthly weather conditions in Stockton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)24 mm (0.9 inches)74%moderate
February Weather-1°C (31°F)20 mm (0.8 inches)78%moderate
March Weather7°C (44°F)67 mm (2.7 inches)67%high
April Weather11°C (53°F)38 mm (1.5 inches)70%very high
May Weather17°C (64°F)158 mm (6.2 inches)82%very high
June Weather25°C (77°F)60 mm (2.4 inches)81%extreme
July Weather27°C (81°F)74 mm (2.9 inches)80%extreme
August Weather25°C (77°F)87 mm (3.4 inches)80%very high
September Weather22°C (72°F)59 mm (2.3 inches)73%very high
October Weather12°C (55°F)58 mm (2.3 inches)71%high
November Weather6°C (44°F)18 mm (0.7 inches)79%moderate
December Weather2°C (35°F)32 mm (1.3 inches)83%moderate

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