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May Weather in Grant City, United States

Last updated: June 24, 2025

In Grant City, United States, the average temperature in May hovers around 18°C (64°F). However, don't be surprised by the extremes, as temperatures can dip to a chilly 2°C (36°F) or soar up to a sweltering 37°C (99°F). During this month, residents can expect 173 mm (6.8 in) of precipitation spread over 14 days, contributing to the area's average humidity of 77%.

May Temperature in Grant City

In May in Grant City, the average temperature is 18°C (64°F). Maximum temperatures can reach 37°C (99°F), while minimums can drop as low as 2°C (36°F). Be prepared for a wide range of temperatures when traveling to Grant City in May.

May Weather in Grant City: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Grant City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grant City, May typically has an average temperature of 18°C (64°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec262842516476787569544033
Data source: Temperature data for Grant City 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 Grant City

In Grant City in May, the precipitation amount is 173 mm (6.8 in) during a span of 14 days.

May Precipitation Trends in Grant City

The chart displays monthly precipitation patterns in Grant City, 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 Grant City, May typically receives around 173 mm (6.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec423399781731371161041241604538
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Grant City

In Grant City in May humidity is 77%. With an average temperature of 18°C (64°F), this humidity feels like a warm embrace, making it feel muggy and potentially uncomfortable for traveling, as sweat clings to your skin and the air thickens around you.

May Average Humidity in Grant City

This chart illustrates the average monthly humidity levels in Grant City, 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 Grant City is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%80%77%78%77%81%81%77%73%75%85%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Grant City

In Grant City 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 Grant City.

Maximum UV Index Levels in Grant City for May

The chart shows the monthly maximum UV Index (UVI) for Grant City 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 Grant City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111099643
Data source: Grant City 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 Grant City Compares to Other Months

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

This table compares monthly weather conditions in Grant City, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)42 mm (1.6 inches)78%moderate
February Weather-2°C (28°F)33 mm (1.3 inches)80%moderate
March Weather6°C (43°F)99 mm (3.9 inches)77%high
April Weather11°C (51°F)78 mm (3.1 inches)77%very high
May Weather18°C (64°F)173 mm (6.8 inches)77%very high
June Weather24°C (76°F)137 mm (5.4 inches)81%extreme
July Weather25°C (78°F)116 mm (4.6 inches)81%very high
August Weather24°C (75°F)104 mm (4.1 inches)77%very high
September Weather21°C (69°F)124 mm (4.9 inches)73%very high
October Weather12°C (54°F)160 mm (6.3 inches)75%high
November Weather5°C (41°F)45 mm (1.8 inches)85%moderate
December Weather1°C (33°F)38 mm (1.5 inches)83%moderate

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