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May Weather in McKinleyville, United States

Last updated: June 24, 2025

In May, the average temperature in McKinleyville, United States is a mild 11°C (52°F), with a minimum dipping to 3°C (37°F) and a maximum reaching 21°C (71°F). During this month, you can expect 66 mm (2.6 in) of precipitation spread over approximately 6 days, accompanied by an average humidity of 81%.

May Temperature in McKinleyville

In May in McKinleyville, the average temperature is 11°C (52°F). The maximum can reach 21°C (71°F), and the minimum can be as low as 3°C (37°F). It's a great time to explore McKinleyville, so be prepared for mild weather and pack accordingly!

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

The chart illustrates May temperature patterns in McKinleyville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In McKinleyville, May typically has an average temperature of 11°C (52°F), with highs reaching up to 21°C (71°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec464546495257596159544945
Data source: Temperature data for McKinleyville 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 McKinleyville

In McKinleyville in May, the precipitation amount is 66 mm (2.6 in) over the course of 6 days.

May Precipitation Trends in McKinleyville

The chart displays monthly precipitation patterns in McKinleyville, 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 McKinleyville, May typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec2432311851216627653567152184
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in McKinleyville

In McKinleyville in May humidity is 81%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor excursions quite uncomfortable, causing a muggy heaviness that dampens clothes and leaves travelers longing for dryer weather.

May Average Humidity in McKinleyville

This chart illustrates the average monthly humidity levels in McKinleyville, 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 McKinleyville is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%85%82%81%79%70%60%62%72%87%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in McKinleyville

In McKinleyville 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 McKinleyville.

Maximum UV Index Levels in McKinleyville for May

The chart shows the monthly maximum UV Index (UVI) for McKinleyville 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 McKinleyville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101110108642
Data source: McKinleyville 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 McKinleyville Compares to Other Months

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

This table compares monthly weather conditions in McKinleyville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)243 mm (9.6 inches)86%moderate
February Weather7°C (45°F)231 mm (9.1 inches)85%moderate
March Weather8°C (46°F)185 mm (7.3 inches)85%high
April Weather10°C (49°F)121 mm (4.7 inches)82%very high
May Weather11°C (52°F)66 mm (2.6 inches)81%very high
June Weather14°C (57°F)27 mm (1.1 inches)79%extreme
July Weather15°C (59°F)6 mm (0.2 inches)70%very high
August Weather16°C (61°F)5 mm (0.2 inches)60%very high
September Weather15°C (59°F)35 mm (1.4 inches)62%very high
October Weather12°C (54°F)67 mm (2.6 inches)72%high
November Weather10°C (49°F)152 mm (6.0 inches)87%moderate
December Weather7°C (46°F)184 mm (7.2 inches)86%low

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