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May Weather in Mountain House, United States

Last updated: June 24, 2025

In Mountain House, United States, the average temperature in May is a comfortable 19°C (66°F). While you can expect a minimum dip to 5°C (42°F) and a maximum rise to 38°C (100°F), the month typically sees about 16 mm (0.6 in) of precipitation across 2 days. With an average humidity of 71%, it's a great time to enjoy the climate!

May Temperature in Mountain House

In May in Mountain House, the average temperature is 19°C (66°F). Maximum temperatures can reach 38°C (100°F), while minimums can dip as low as 5°C (42°F). Therefore, when traveling during this time, it's advisable to prepare for a wide range of weather conditions and pack accordingly.

May Weather in Mountain House: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Mountain House, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mountain House, May typically has an average temperature of 19°C (66°F), with highs reaching up to 38°C (100°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec495254606572757571645549
Data source: Temperature data for Mountain House 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 Mountain House

In Mountain House in May, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

May Precipitation Trends in Mountain House

The chart displays monthly precipitation patterns in Mountain House, 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 Mountain House, May typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec92767531161002223378
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Mountain House

In Mountain House in May humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

May Average Humidity in Mountain House

This chart illustrates the average monthly humidity levels in Mountain House, 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 Mountain House is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mountain House

In Mountain House 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 Mountain House.

Maximum UV Index Levels in Mountain House for May

The chart shows the monthly maximum UV Index (UVI) for Mountain House 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 Mountain House typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589111111109753
Data source: Mountain House 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 Mountain House Compares to Other Months

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

This table compares monthly weather conditions in Mountain House, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)92 mm (3.6 inches)82%moderate
February Weather11°C (52°F)76 mm (3.0 inches)84%moderate
March Weather12°C (55°F)75 mm (2.9 inches)82%very high
April Weather16°C (60°F)31 mm (1.2 inches)78%very high
May Weather19°C (66°F)16 mm (0.6 inches)71%extreme
June Weather22°C (73°F)1 mm (0.0 inches)64%extreme
July Weather24°C (75°F)0 mm (0.0 inches)58%extreme
August Weather24°C (75°F)0 mm (0.0 inches)54%very high
September Weather22°C (71°F)2 mm (0.1 inches)55%very high
October Weather18°C (64°F)22 mm (0.9 inches)62%high
November Weather13°C (55°F)33 mm (1.3 inches)78%moderate
December Weather9°C (49°F)78 mm (3.1 inches)80%moderate

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