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May Weather in Prineville, United States

Last updated: June 24, 2025

In May, the average temperature in Prineville, United States hovers around 12°C (54°F). During this time, temperatures can range from a chilly -3°C (27°F) to a warm 33°C (91°F). Expect 38 mm (1.5 in) of precipitation spread over 9 days, contributing to an average humidity of 80%.

May Temperature in Prineville

In May in Prineville, the average temperature is 12°C (54°F). Maximum temperatures can reach 33°C (91°F), while minimums can dip as low as -3°C (27°F). This diverse temperature range makes Prineville a destination where you should pack for both warm and cool weather to fully enjoy your travels.

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

The chart illustrates May temperature patterns in Prineville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Prineville, May typically has an average temperature of 12°C (54°F), with highs reaching up to 33°C (91°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec333439455463727161483933
Data source: Temperature data for Prineville 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 Prineville

In Prineville in May, the total precipitation amount is 38 mm (1.5 in) spread over a duration of 9 days.

May Precipitation Trends in Prineville

The chart displays monthly precipitation patterns in Prineville, 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 Prineville, May typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6481545838203825425965
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Prineville

In Prineville in May, humidity is 80%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket that wraps around you, making it feel much cooler and damp. Traveling in these conditions might leave you feeling chilly and slightly uncomfortable, as the moisture in the air clings to your skin and clothes, turning each step into a soggy endeavor.

May Average Humidity in Prineville

This chart illustrates the average monthly humidity levels in Prineville, 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 Prineville is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%87%86%85%80%82%79%63%59%78%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Prineville

In Prineville 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 Prineville.

Maximum UV Index Levels in Prineville for May

The chart shows the monthly maximum UV Index (UVI) for Prineville 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 Prineville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101010108632
Data source: Prineville 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 Prineville Compares to Other Months

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

This table compares monthly weather conditions in Prineville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)64 mm (2.5 inches)86%moderate
February Weather1°C (34°F)81 mm (3.2 inches)87%moderate
March Weather4°C (39°F)54 mm (2.1 inches)86%high
April Weather7°C (46°F)58 mm (2.3 inches)85%very high
May Weather12°C (54°F)38 mm (1.5 inches)80%very high
June Weather17°C (63°F)19 mm (0.8 inches)82%very high
July Weather22°C (72°F)2 mm (0.1 inches)78%very high
August Weather21°C (71°F)8 mm (0.3 inches)62%very high
September Weather16°C (61°F)25 mm (1.0 inches)59%very high
October Weather9°C (48°F)42 mm (1.6 inches)78%high
November Weather4°C (40°F)59 mm (2.3 inches)88%moderate
December Weather1°C (33°F)65 mm (2.6 inches)88%low

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