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May Weather in Gratton, United States

Last updated: June 24, 2025

In Gratton, United States, the average temperature in May hovers around 17°C (62°F), but be prepared for some variability: it can dip to a chilly -1°C (30°F) or soar up to a warm 30°C (86°F). Expect 138 mm (5.4 in) of precipitation over 16 days, contributing to a rather humid atmosphere with an average of 83% humidity. Plan accordingly to make the most of your time in this diverse climate!

May Temperature in Gratton

In May in Gratton, the average temperature is 17°C (62°F). The maximum can reach 30°C (86°F), while the minimum can dip as low as -1°C (30°F). This wide range of temperatures makes it essential for travelers to pack accordingly to enjoy their visit comfortably.

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

The chart illustrates May temperature patterns in Gratton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gratton, May typically has an average temperature of 17°C (62°F), with highs reaching up to 30°C (86°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec344045536268727066574339
Data source: Temperature data for Gratton 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 Gratton

In Gratton in May, the precipitation amount is 138 mm (5.4 in), falling over a span of 16 days.

May Precipitation Trends in Gratton

The chart displays monthly precipitation patterns in Gratton, 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 Gratton, May typically receives around 138 mm (5.4 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec9615112013113813983979712477118
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Gratton

In Gratton in May, humidity is 83%. With an average temperature of 17°C (62°F), this humidity feels like traveling through a thick blanket of warmth, making every step feel heavy and inviting frequent breaks to cool down and hydrate.

May Average Humidity in Gratton

This chart illustrates the average monthly humidity levels in Gratton, 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 Gratton is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%86%84%83%83%79%66%68%78%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Gratton

In Gratton 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 Gratton.

Maximum UV Index Levels in Gratton for May

The chart shows the monthly maximum UV Index (UVI) for Gratton 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 Gratton typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
Data source: Gratton 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 Gratton Compares to Other Months

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

This table compares monthly weather conditions in Gratton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)96 mm (3.8 inches)87%moderate
February Weather5°C (41°F)151 mm (6.0 inches)87%high
March Weather7°C (45°F)119 mm (4.7 inches)86%very high
April Weather12°C (53°F)131 mm (5.1 inches)84%very high
May Weather17°C (62°F)138 mm (5.4 inches)83%extreme
June Weather20°C (68°F)139 mm (5.5 inches)83%extreme
July Weather22°C (72°F)83 mm (3.3 inches)79%extreme
August Weather21°C (71°F)97 mm (3.8 inches)66%very high
September Weather19°C (67°F)97 mm (3.8 inches)68%very high
October Weather14°C (57°F)124 mm (4.9 inches)78%high
November Weather6°C (43°F)77 mm (3.0 inches)89%moderate
December Weather4°C (39°F)118 mm (4.7 inches)86%moderate

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