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May Weather in Hermann, United States

Last updated: June 24, 2025

In Hermann, United States, the weather in May is typically mild, with an average temperature of 19°C (66°F). However, be prepared for a wide temperature range, as it can dip to a chilly 4°C (40°F) or soar to a warm 34°C (94°F). Expect considerable precipitation, averaging 158 mm (6.2 in) over about 15 days, and stay comfortable with an average humidity level of 82%.

May Temperature in Hermann

In May in Hermann, the average temperature is 19°C (66°F). Maximums can reach 34°C (94°F) and minimums can be as low as 4°C (40°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm days and cooler evenings.

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

The chart illustrates May temperature patterns in Hermann, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hermann, May typically has an average temperature of 19°C (66°F), with highs reaching up to 34°C (94°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec323546546676797672584439
Data source: Temperature data for Hermann 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 Hermann

In Hermann in May, the precipitation amount is 158 mm (6.2 in) over the course of 15 days.

May Precipitation Trends in Hermann

The chart displays monthly precipitation patterns in Hermann, 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 Hermann, May typically receives around 158 mm (6.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec7069123121158899812857946447
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hermann

In Hermann in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

May Average Humidity in Hermann

This chart illustrates the average monthly humidity levels in Hermann, 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 Hermann is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hermann

In Hermann 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 Hermann.

Maximum UV Index Levels in Hermann for May

The chart shows the monthly maximum UV Index (UVI) for Hermann 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 Hermann typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
Data source: Hermann 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 Hermann Compares to Other Months

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

This table compares monthly weather conditions in Hermann, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)70 mm (2.8 inches)82%moderate
February Weather2°C (35°F)69 mm (2.7 inches)80%moderate
March Weather8°C (47°F)123 mm (4.9 inches)80%high
April Weather12°C (55°F)121 mm (4.8 inches)80%very high
May Weather19°C (66°F)158 mm (6.2 inches)82%very high
June Weather24°C (76°F)89 mm (3.5 inches)83%extreme
July Weather26°C (80°F)98 mm (3.8 inches)81%extreme
August Weather24°C (76°F)128 mm (5.1 inches)80%very high
September Weather22°C (72°F)57 mm (2.3 inches)76%very high
October Weather15°C (58°F)94 mm (3.7 inches)76%high
November Weather7°C (45°F)64 mm (2.5 inches)85%moderate
December Weather4°C (39°F)47 mm (1.9 inches)86%moderate

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