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May Weather in Vandalia, United States

Last updated: June 24, 2025

In Vandalia, United States, the average temperature in May hovers around 19°C (67°F), with a range that can dip to a chilly 2°C (37°F) and rise to a warm 34°C (93°F). Expect about 153 mm (6.0 in) of precipitation over 14 days, accompanied by an average humidity of 80%. Whether you're seeking sunny days or cozy rain, this month offers a blend of weather experiences!

May Temperature in Vandalia

In May in Vandalia, the average temperature is 19°C (67°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 2°C (37°F). This makes Vandalia a versatile destination for travelers, offering pleasant weather for various outdoor activities and sightseeing.

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

The chart illustrates May temperature patterns in Vandalia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vandalia, May typically has an average temperature of 19°C (67°F), with highs reaching up to 34°C (93°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec323546546776797572594338
Data source: Temperature data for Vandalia 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 Vandalia

In Vandalia in May, the total precipitation amount is 153 mm (6.0 in) spread over 14 days.

May Precipitation Trends in Vandalia

The chart displays monthly precipitation patterns in Vandalia, 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 Vandalia, May typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec808213413015310594105621148371
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Vandalia

In Vandalia in May humidity is 80%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor exploration a bit uncomfortable and sticky, yet it encourages you to seek out refreshing indoor activities or shaded spots to escape the heat.

May Average Humidity in Vandalia

This chart illustrates the average monthly humidity levels in Vandalia, 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 Vandalia is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Vandalia

In Vandalia 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 Vandalia.

Maximum UV Index Levels in Vandalia for May

The chart shows the monthly maximum UV Index (UVI) for Vandalia 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 Vandalia typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356911111098643
Data source: Vandalia 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 Vandalia Compares to Other Months

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

This table compares monthly weather conditions in Vandalia, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)80 mm (3.1 inches)84%moderate
February Weather2°C (35°F)82 mm (3.2 inches)82%moderate
March Weather8°C (46°F)134 mm (5.3 inches)84%high
April Weather12°C (55°F)130 mm (5.1 inches)83%very high
May Weather19°C (67°F)153 mm (6.0 inches)80%extreme
June Weather25°C (77°F)105 mm (4.1 inches)83%extreme
July Weather26°C (79°F)94 mm (3.7 inches)82%very high
August Weather24°C (76°F)105 mm (4.1 inches)82%very high
September Weather22°C (72°F)62 mm (2.4 inches)79%very high
October Weather15°C (59°F)114 mm (4.5 inches)79%high
November Weather6°C (43°F)83 mm (3.3 inches)88%moderate
December Weather3°C (38°F)71 mm (2.8 inches)87%moderate

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