May Weather in Fostoria, United States

Last updated: June 24, 2025

In May, the average temperature in Fostoria, United States hovers around 17°C (62°F), but be prepared for a range that can dip to a brisk -1°C (30°F) or soar up to a sizzling 34°C (94°F). Expect about 145 mm (5.7 in) of precipitation over 14 days, contributing to an average humidity of 81%. Whether you're looking to enjoy the warmth or brace for a chill, this month brings a blend of climates!

May Temperature in Fostoria

In May in Fostoria, the average temperature is 17°C (62°F), with maximums reaching up to 34°C (94°F) and minimums dropping as low as -1°C (30°F). This diverse temperature range makes Fostoria an ideal destination for travelers seeking both warm and cooler weather experiences.

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

The chart illustrates May temperature patterns in Fostoria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fostoria, May typically has an average temperature of 17°C (62°F), with highs reaching up to 34°C (94°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec293140506271757368574135
Data source: Temperature data for Fostoria 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 Fostoria

In Fostoria in May, the total precipitation amount is 145 mm (5.7 in) over a span of 14 days.

May Precipitation Trends in Fostoria

The chart displays monthly precipitation patterns in Fostoria, 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 Fostoria, May typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec7179911021451251259067928861
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Fostoria

In Fostoria in May, humidity is 81%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making outdoor adventures feel sticky and requiring frequent breaks to stay comfortable while exploring.

May Average Humidity in Fostoria

This chart illustrates the average monthly humidity levels in Fostoria, 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 Fostoria is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Fostoria

In Fostoria 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 Fostoria.

Maximum UV Index Levels in Fostoria for May

The chart shows the monthly maximum UV Index (UVI) for Fostoria 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 Fostoria typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Fostoria 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 Fostoria Compares to Other Months

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

This table compares monthly weather conditions in Fostoria, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)71 mm (2.8 inches)88%moderate
February Weather-1°C (31°F)79 mm (3.1 inches)87%moderate
March Weather5°C (40°F)91 mm (3.6 inches)87%high
April Weather10°C (50°F)102 mm (4.0 inches)87%very high
May Weather17°C (62°F)145 mm (5.7 inches)81%very high
June Weather22°C (72°F)125 mm (4.9 inches)82%very high
July Weather24°C (76°F)125 mm (4.9 inches)81%very high
August Weather23°C (73°F)90 mm (3.5 inches)78%very high
September Weather20°C (68°F)67 mm (2.6 inches)78%very high
October Weather14°C (57°F)92 mm (3.6 inches)82%high
November Weather5°C (42°F)88 mm (3.5 inches)89%moderate
December Weather2°C (35°F)61 mm (2.4 inches)86%low

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