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May Weather in Plains, United States

Last updated: June 24, 2025

In Plains, United States, the average temperature in May is a pleasant 23°C (74°F). However, temperatures can range from a cool 8°C (47°F) to a scorching 36°C (97°F). Expect moderate precipitation with an average of 91 mm (3.6 in) spread over 10 days, and enjoy the air with an average humidity of 73% for a comfortably warm experience.

May Temperature in Plains

In May in Plains, the average temperature is 23°C (74°F). The maximum can reach 36°C (97°F) and the minimum can be as low as 8°C (47°F). This makes it an ideal destination for travelers seeking warm weather, but be prepared for cooler evenings.

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

The chart illustrates May temperature patterns in Plains, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plains, May typically has an average temperature of 23°C (74°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec505661667479818178705752
Data source: Temperature data for 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 Plains

In Plains in May, the precipitation amount totals 91 mm (3.6 in) over a span of 10 days.

May Precipitation Trends in Plains

The chart displays monthly precipitation patterns in 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 Plains, May typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec97118941169110211311210511561132
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Plains

In Plains in May, humidity is 73%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping blanket, making traveling a bit sweaty and heavy, but still pleasant if you stay hydrated and take breaks in the shade.

May Average Humidity in Plains

This chart illustrates the average monthly humidity levels in 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 Plains is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%82%80%76%73%74%80%79%83%77%84%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Plains

In Plains 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 Plains.

Maximum UV Index Levels in Plains for May

The chart shows the monthly maximum UV Index (UVI) for 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 Plains typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec479101111111110864
Data source: 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 Plains Compares to Other Months

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

This table compares monthly weather conditions in Plains, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)97 mm (3.8 inches)85%moderate
February Weather13°C (56°F)118 mm (4.6 inches)82%high
March Weather16°C (61°F)94 mm (3.7 inches)80%very high
April Weather19°C (66°F)116 mm (4.6 inches)76%very high
May Weather23°C (74°F)91 mm (3.6 inches)73%extreme
June Weather26°C (79°F)102 mm (4.0 inches)74%extreme
July Weather27°C (82°F)113 mm (4.5 inches)80%extreme
August Weather27°C (81°F)112 mm (4.4 inches)79%extreme
September Weather26°C (79°F)105 mm (4.1 inches)83%very high
October Weather21°C (71°F)115 mm (4.5 inches)77%very high
November Weather14°C (57°F)61 mm (2.4 inches)84%high
December Weather11°C (53°F)132 mm (5.2 inches)88%moderate

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