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May Weather in Casey, United States

Last updated: June 24, 2025

In May, the average temperature in Casey, United States hovers around 19°C (67°F), with fluctuations that can see it dip as low as 1°C (35°F) or soar up to a sizzling 36°C (97°F). Expect about 135 mm (5.3 in) of precipitation over 13 days, contributing to a generally high average humidity of 80%.

May Temperature in Casey

In May in Casey, the average temperature is 19°C (67°F). Maximums can reach 36°C (97°F), while minimums can drop as low as 1°C (35°F). Pack accordingly to enjoy both warm days and cool evenings during your travels!

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

The chart illustrates May temperature patterns in Casey, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casey, May typically has an average temperature of 19°C (67°F), with highs reaching up to 36°C (97°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec313445546676797571594237
Data source: Temperature data for Casey 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 Casey

In Casey in May, the precipitation amount is 135 mm (5.3 in) over the course of 13 days.

May Precipitation Trends in Casey

The chart displays monthly precipitation patterns in Casey, 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 Casey, May typically receives around 135 mm (5.3 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec8490126116135108117108671059379
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Casey

In Casey in May humidity is 80%. With an average temperature of 19°C (67°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor exploration a bit uncomfortable and sticky, yet it encourages you to seek out refreshing indoor activities or shaded spots to escape the heat.

May Average Humidity in Casey

This chart illustrates the average monthly humidity levels in Casey, 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 Casey is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%84%83%80%83%82%83%79%79%88%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Casey

In Casey 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 Casey.

Maximum UV Index Levels in Casey for May

The chart shows the monthly maximum UV Index (UVI) for Casey 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 Casey typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Casey 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 Casey Compares to Other Months

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

This table compares monthly weather conditions in Casey, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (31°F)84 mm (3.3 inches)84%moderate
February Weather1°C (35°F)90 mm (3.5 inches)82%moderate
March Weather7°C (45°F)126 mm (4.9 inches)84%high
April Weather12°C (54°F)116 mm (4.6 inches)83%very high
May Weather19°C (67°F)135 mm (5.3 inches)80%very high
June Weather24°C (76°F)108 mm (4.2 inches)83%extreme
July Weather26°C (79°F)117 mm (4.6 inches)82%very high
August Weather24°C (76°F)108 mm (4.3 inches)82%very high
September Weather22°C (72°F)67 mm (2.6 inches)79%very high
October Weather15°C (59°F)105 mm (4.1 inches)79%high
November Weather6°C (43°F)93 mm (3.7 inches)88%moderate
December Weather3°C (37°F)78 mm (3.1 inches)87%moderate

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