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May Weather in Cascade, United States

Last updated: June 24, 2025

In May, the average temperature in Cascade, United States hovers around 7°C (45°F). During this time, you can expect temperatures to range from a chilly -7°C (20°F) to a warm 27°C (81°F). With an average humidity of 77%, the weather can feel quite damp. Additionally, there's a significant precipitation amount of 85 mm (3.4 in) spread over 13 days, so be prepared for some rainy spells!

May Temperature in Cascade

In May in Cascade, the average temperature is 7°C (45°F). Maximums can reach 27°C (81°F), while minimums can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures when traveling to Cascade this month.

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

The chart illustrates May temperature patterns in Cascade, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cascade, May typically has an average temperature of 7°C (45°F), with highs reaching up to 27°C (81°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec242432374556666555403023
Data source: Temperature data for Cascade 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 Cascade

In Cascade in May, the total precipitation amount is 85 mm (3.4 in), which occurs over the span of 13 days.

May Precipitation Trends in Cascade

The chart displays monthly precipitation patterns in Cascade, 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 Cascade, May typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec1191631159785669224371101109
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cascade

In Cascade in May, humidity is 77%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making it important to dress in layers for comfort while exploring the area.

May Average Humidity in Cascade

This chart illustrates the average monthly humidity levels in Cascade, 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 Cascade is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%91%88%84%77%78%78%63%60%77%86%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cascade

In Cascade 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 Cascade.

Maximum UV Index Levels in Cascade for May

The chart shows the monthly maximum UV Index (UVI) for Cascade 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 Cascade typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111108642
Data source: Cascade 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 Cascade Compares to Other Months

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

This table compares monthly weather conditions in Cascade, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)119 mm (4.7 inches)90%moderate
February Weather-4°C (24°F)163 mm (6.4 inches)91%moderate
March Weather0°C (32°F)114 mm (4.5 inches)88%high
April Weather3°C (37°F)97 mm (3.8 inches)84%very high
May Weather7°C (45°F)85 mm (3.4 inches)77%very high
June Weather13°C (56°F)65 mm (2.6 inches)78%extreme
July Weather19°C (67°F)9 mm (0.3 inches)77%extreme
August Weather18°C (65°F)21 mm (0.8 inches)63%very high
September Weather13°C (55°F)43 mm (1.7 inches)60%very high
October Weather4°C (40°F)71 mm (2.8 inches)77%high
November Weather-1°C (30°F)101 mm (4.0 inches)86%moderate
December Weather-5°C (23°F)109 mm (4.3 inches)89%low

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