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May Weather in The Plains, United States

Last updated: June 24, 2025

In May, the average temperature in The Plains, United States hovers around 18°C (65°F), with a range that can dip as low as 0°C (33°F) and peak at 32°C (90°F). Rainfall is not uncommon, bringing about 135 mm (5.3 in) across approximately 15 days of the month, complemented by a notably high average humidity of 82%.

May Temperature in The Plains

In May, in The Plains, the average temperature is 18°C (65°F). The maximum can reach 32°C (90°F), and the minimum can be as low as 0°C (33°F). Be prepared for a wide range of temperatures when traveling during this time.

May Weather in The Plains: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in The Plains, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In The Plains, May typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec343845546572777570594439
Data source: Temperature data for The Plains 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 The Plains

In The Plains in May, the precipitation amount is 135 mm (5.3 in), occurring over a span of 15 days.

May Precipitation Trends in The Plains

The chart displays monthly precipitation patterns in The Plains, 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 The Plains, May typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec871231151341351451071229710683116
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in The Plains

In The Plains in May, humidity is 82%. With an average temperature of 18°C (65°F), this humidity feels like a warm, sticky embrace that can quickly leave travelers feeling fatigued and in need of frequent breaks to stay refreshed and hydrated.

May Average Humidity in The Plains

This chart illustrates the average monthly humidity levels in The Plains, 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 The Plains is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in The Plains

In The Plains 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 The Plains.

Maximum UV Index Levels in The Plains for May

The chart shows the monthly maximum UV Index (UVI) for The Plains 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 The Plains typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098643
Data source: The Plains 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 The Plains Compares to Other Months

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

This table compares monthly weather conditions in The Plains, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)87 mm (3.4 inches)88%moderate
February Weather3°C (38°F)123 mm (4.8 inches)88%moderate
March Weather7°C (45°F)115 mm (4.5 inches)88%high
April Weather12°C (54°F)134 mm (5.3 inches)86%very high
May Weather18°C (65°F)135 mm (5.3 inches)82%very high
June Weather22°C (72°F)145 mm (5.7 inches)84%very high
July Weather25°C (77°F)107 mm (4.2 inches)82%very high
August Weather24°C (75°F)122 mm (4.8 inches)73%very high
September Weather21°C (70°F)96 mm (3.8 inches)73%very high
October Weather15°C (59°F)106 mm (4.2 inches)81%high
November Weather7°C (44°F)83 mm (3.3 inches)89%moderate
December Weather4°C (39°F)116 mm (4.6 inches)86%moderate

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