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May Weather in Alturas, United States

Last updated: June 24, 2025

In Alturas, United States, the month of May sees an average temperature of 13°C (55°F). This month can experience a wide temperature range, with minimums plummeting to -3°C (26°F) and maximums soaring up to 32°C (90°F). Expect around 53 mm (2.1 in) of precipitation spread over 8 days, contributing to an average humidity level of 72%. Whether you're planning a trip or just curious, these conditions paint a vivid picture of what to anticipate!

May Temperature in Alturas

In May in Alturas, the average temperature is 13°C (55°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as -3°C (26°F). Be prepared for a wide range of weather conditions when planning your travels.

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

The chart illustrates May temperature patterns in Alturas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Alturas, May typically has an average temperature of 13°C (55°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec323237455565747262483930
Data source: Temperature data for Alturas 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 Alturas

In Alturas in May, the total precipitation amount is 53 mm (2.1 in) over the course of 8 days.

May Precipitation Trends in Alturas

The chart displays monthly precipitation patterns in Alturas, 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 Alturas, May typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec7475725453183620354769
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Alturas

In Alturas in May humidity is 72%. With an average temperature of 13°C (55°F), this humidity feels like a damp blanket wrapping around you, making outdoor exploration somewhat uncomfortable and prompting travelers to seek shade or indoor activities more often.

May Average Humidity in Alturas

This chart illustrates the average monthly humidity levels in Alturas, 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 Alturas is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%83%72%67%56%42%46%67%86%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Alturas

In Alturas 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 Alturas.

Maximum UV Index Levels in Alturas for May

The chart shows the monthly maximum UV Index (UVI) for Alturas 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 Alturas typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec4579111211119743
Data source: Alturas 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 Alturas Compares to Other Months

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

This table compares monthly weather conditions in Alturas, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)74 mm (2.9 inches)86%moderate
February Weather0°C (33°F)74 mm (2.9 inches)87%moderate
March Weather3°C (38°F)72 mm (2.9 inches)86%high
April Weather7°C (45°F)54 mm (2.1 inches)83%very high
May Weather13°C (55°F)53 mm (2.1 inches)72%extreme
June Weather18°C (65°F)18 mm (0.7 inches)67%extreme
July Weather23°C (74°F)3 mm (0.1 inches)56%extreme
August Weather22°C (72°F)6 mm (0.2 inches)42%extreme
September Weather17°C (63°F)20 mm (0.8 inches)46%very high
October Weather9°C (49°F)35 mm (1.4 inches)67%high
November Weather4°C (40°F)47 mm (1.8 inches)86%moderate
December Weather-1°C (31°F)69 mm (2.7 inches)86%moderate

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