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May Weather in Centralia, United States

Last updated: June 24, 2025

In May, the average temperature in Centralia, United States is a comfortable 18°C (65°F). However, temperatures can fluctuate dramatically, with a minimum of 2°C (36°F) and a sizzling maximum of 37°C (98°F). Visitors can expect about 208 mm (8.2 inches) of precipitation spread over 14 days, contributing to an average humidity of 82%. Plan accordingly to enjoy this vibrant climate!

May Temperature in Centralia

In May in Centralia, the average temperature is 18°C (65°F), with maximums reaching up to 37°C (98°F) and minimums dropping as low as 2°C (36°F). This wide range of temperatures suggests that travelers should pack versatile clothing to comfortably enjoy their stay.

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

The chart illustrates May temperature patterns in Centralia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Centralia, May typically has an average temperature of 18°C (65°F), with highs reaching up to 37°C (98°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec293045536477807671554336
Data source: Temperature data for Centralia 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 Centralia

In Centralia in May, the precipitation amount is 208 mm (8.2 in) spread over 14 days.

May Precipitation Trends in Centralia

The chart displays monthly precipitation patterns in Centralia, 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 Centralia, May typically receives around 208 mm (8.2 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec313193822089675108681163527
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Centralia

In Centralia in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

May Average Humidity in Centralia

This chart illustrates the average monthly humidity levels in Centralia, 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 Centralia is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%78%70%73%82%82%81%78%71%71%81%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Centralia

In Centralia 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 Centralia.

Maximum UV Index Levels in Centralia for May

The chart shows the monthly maximum UV Index (UVI) for Centralia 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 Centralia typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3569101111109643
Data source: Centralia 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 Centralia Compares to Other Months

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

This table compares monthly weather conditions in Centralia, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)31 mm (1.2 inches)76%moderate
February Weather-1°C (30°F)31 mm (1.2 inches)77%moderate
March Weather7°C (45°F)93 mm (3.6 inches)70%high
April Weather12°C (53°F)82 mm (3.2 inches)73%very high
May Weather18°C (65°F)208 mm (8.2 inches)82%very high
June Weather25°C (77°F)96 mm (3.8 inches)82%extreme
July Weather27°C (80°F)75 mm (2.9 inches)81%extreme
August Weather24°C (76°F)108 mm (4.3 inches)78%very high
September Weather22°C (72°F)68 mm (2.7 inches)71%very high
October Weather13°C (55°F)116 mm (4.6 inches)71%high
November Weather6°C (43°F)34 mm (1.4 inches)81%moderate
December Weather2°C (36°F)27 mm (1.1 inches)84%moderate

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