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May Weather in Hollister, United States

Last updated: June 24, 2025

In May, the average temperature in Hollister, United States is a comfortable 21°C (70°F), but be prepared for variations as it can dip to a chilly 4°C (39°F) or soar to a scorching 37°C (98°F). Expect about 121 mm (4.8 in) of precipitation spread over 11 days, contributing to an average humidity level of 82%. Whether you prefer the warmth or the cool, this month has something to offer for everyone!

May Temperature in Hollister

In May in Hollister, the average temperature is 21°C (70°F). Maximum temperatures can reach 37°C (98°F), while the minimum can drop as low as 4°C (39°F). This varied climate makes Hollister an ideal destination for travelers seeking both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Hollister, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hollister, May typically has an average temperature of 21°C (70°F), with highs reaching up to 37°C (98°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec434852617076807874655146
Data source: Temperature data for Hollister 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 Hollister

In Hollister in May, the total precipitation amount is 121 mm (4.8 in), which occurs over the course of 11 days.

May Precipitation Trends in Hollister

The chart displays monthly precipitation patterns in Hollister, 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 Hollister, May typically receives around 121 mm (4.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec9111185107121135132158122918299
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hollister

In Hollister in May, humidity is 82%. With an average temperature of 21°C (70°F), this humidity feels like a warm, sticky embrace that can quickly lead to discomfort for travelers, making outdoor activities less enjoyable and requiring frequent breaks for hydration.

May Average Humidity in Hollister

This chart illustrates the average monthly humidity levels in Hollister, 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 Hollister is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%84%82%83%83%79%77%75%81%87%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hollister

In Hollister 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 Hollister.

Maximum UV Index Levels in Hollister for May

The chart shows the monthly maximum UV Index (UVI) for Hollister 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 Hollister typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4689101111109853
Data source: Hollister 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 Hollister Compares to Other Months

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

This table compares monthly weather conditions in Hollister, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)91 mm (3.6 inches)84%moderate
February Weather9°C (48°F)111 mm (4.4 inches)84%high
March Weather11°C (52°F)85 mm (3.3 inches)84%very high
April Weather16°C (62°F)107 mm (4.2 inches)82%very high
May Weather21°C (70°F)121 mm (4.8 inches)82%very high
June Weather24°C (76°F)135 mm (5.3 inches)83%extreme
July Weather27°C (80°F)132 mm (5.2 inches)79%extreme
August Weather26°C (79°F)157 mm (6.2 inches)77%very high
September Weather23°C (74°F)122 mm (4.8 inches)75%very high
October Weather18°C (65°F)91 mm (3.6 inches)81%very high
November Weather11°C (51°F)82 mm (3.2 inches)87%moderate
December Weather8°C (47°F)99 mm (3.9 inches)85%moderate

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