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May Weather in Hayden, United States

Last updated: June 24, 2025

In Hayden, United States, the average temperature in May hovers around 9°C (49°F). Expect a chilly minimum of -8°C (17°F), while the mercury can rise to a comfortable 27°C (82°F) at its peak. Throughout the month, anticipate about 59 mm (2.3 in) of precipitation spread over 10 days, contributing to an average humidity level of 67%.

May Temperature in Hayden

In May in Hayden, the average temperature is 9°C (49°F). The maximum can reach 27°C (82°F) and the minimum can be as low as -8°C (17°F). This diverse temperature range makes it essential for travelers to pack layers to stay comfortable throughout the day.

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

The chart illustrates May temperature patterns in Hayden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayden, May typically has an average temperature of 9°C (49°F), with highs reaching up to 27°C (82°F) and lows dropping to around -8°C (17°F).
JanFebMarAprMayJunJulAugSepOctNovDec212432384962696759413222
Data source: Temperature data for Hayden 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 Hayden

In Hayden in May, the precipitation amount is 59 mm (2.3 in) over the course of 10 days.

May Precipitation Trends in Hayden

The chart displays monthly precipitation patterns in Hayden, 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 Hayden, May typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec536957525920101423544459
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hayden

In Hayden in May, humidity is 67%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to bundle up if you're planning to explore the area.

May Average Humidity in Hayden

This chart illustrates the average monthly humidity levels in Hayden, 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 Hayden is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%86%75%67%67%68%62%63%63%72%80%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hayden

In Hayden in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Hayden.

Maximum UV Index Levels in Hayden for May

The chart shows the monthly maximum UV Index (UVI) for Hayden 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 Hayden typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111213121110753
Data source: Hayden 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 Hayden Compares to Other Months

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

This table compares monthly weather conditions in Hayden, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)53 mm (2.1 inches)84%moderate
February Weather-5°C (24°F)69 mm (2.7 inches)85%high
March Weather0°C (33°F)57 mm (2.2 inches)75%very high
April Weather3°C (38°F)52 mm (2.0 inches)67%extreme
May Weather9°C (49°F)59 mm (2.3 inches)67%extreme
June Weather17°C (62°F)20 mm (0.8 inches)68%extreme
July Weather21°C (70°F)10 mm (0.4 inches)62%extreme
August Weather20°C (68°F)14 mm (0.5 inches)63%extreme
September Weather15°C (60°F)23 mm (0.9 inches)63%very high
October Weather5°C (42°F)54 mm (2.1 inches)72%high
November Weather0°C (32°F)44 mm (1.7 inches)79%moderate
December Weather-6°C (22°F)59 mm (2.3 inches)85%moderate

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