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May Weather in Barstow Heights, United States

Last updated: June 24, 2025

In Barstow Heights, United States during May, the average temperature is a comfortable 21°C (70°F), although it can drop as low as 4°C (40°F) and climb up to a scorching 39°C (103°F). Expect minimal rainfall, with an average precipitation of 4 mm (0.2 in) spread over just 1 day. The average humidity sits at a pleasant 45%, making it a delightful time to enjoy the weather!

May Temperature in Barstow Heights

In May in Barstow Heights, the average temperature is 21°C (70°F), with maximums reaching up to 39°C (103°F) and minimums dipping as low as 4°C (40°F). This range makes it essential for travelers to pack accordingly and prepare for both warm days and cooler nights.

May Weather in Barstow Heights: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Barstow Heights, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Barstow Heights, May typically has an average temperature of 21°C (70°F), with highs reaching up to 39°C (103°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec495055647081878679665747
Data source: Temperature data for Barstow Heights 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 Barstow Heights

In Barstow Heights in May, the precipitation amount is 4 mm (0.2 in) during 1 day.

May Precipitation Trends in Barstow Heights

The chart displays monthly precipitation patterns in Barstow Heights, 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 Barstow Heights, May typically receives around 4 mm (0.2 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec21181812416524723
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Barstow Heights

In Barstow Heights in May humidity is 45%. With an average temperature of 21°C (70°F), this humidity feels like a comfortable embrace while traveling, allowing for pleasant outdoor exploration without feeling overly sticky or oppressive.

May Average Humidity in Barstow Heights

This chart illustrates the average monthly humidity levels in Barstow Heights, 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 Barstow Heights is approximately 45%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%80%69%57%45%34%29%28%42%54%68%75%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Barstow Heights

In Barstow Heights in May, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Barstow Heights.

Maximum UV Index Levels in Barstow Heights for May

The chart shows the monthly maximum UV Index (UVI) for Barstow Heights 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 Barstow Heights typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469101112121110854
Data source: Barstow Heights 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 Barstow Heights Compares to Other Months

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

This table compares monthly weather conditions in Barstow Heights, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)21 mm (0.8 inches)76%moderate
February Weather10°C (51°F)18 mm (0.7 inches)80%high
March Weather13°C (56°F)18 mm (0.7 inches)69%very high
April Weather18°C (64°F)12 mm (0.5 inches)57%very high
May Weather21°C (70°F)4 mm (0.2 inches)45%extreme
June Weather27°C (81°F)1 mm (0.1 inches)34%extreme
July Weather30°C (87°F)6 mm (0.2 inches)29%extreme
August Weather30°C (86°F)5 mm (0.2 inches)28%extreme
September Weather26°C (79°F)2 mm (0.1 inches)41%very high
October Weather19°C (66°F)4 mm (0.2 inches)54%very high
November Weather14°C (57°F)7 mm (0.3 inches)68%moderate
December Weather9°C (48°F)23 mm (0.9 inches)75%moderate

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