May Weather in Cardston, Canada

Last updated: June 18, 2025

In May, the average temperature in Cardston, Canada hovers around 10°C (51°F). Expect a range of conditions, with minimum temperatures dipping to -6°C (21°F) and maximums soaring to 28°C (82°F). Be prepared for a fair share of rain, as the region experiences an average precipitation of 72 mm (2.9 in) over 10 days, accompanied by a relatively high humidity of 78%.

May Temperature in Cardston

In May in Cardston, the average temperature is 10°C (51°F). The maximum can reach 28°C (82°F), while the minimum can be as low as -6°C (21°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates May temperature patterns in Cardston, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cardston, May typically has an average temperature of 10°C (51°F), with highs reaching up to 28°C (82°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec241730385159666454403325
Data source: Temperature data for Cardston 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 Cardston

In Cardston in May, the total precipitation amount is 72 mm (2.9 in) over a span of 10 days.

May Precipitation Trends in Cardston

The chart displays monthly precipitation patterns in Cardston, 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 Cardston, May typically receives around 72 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec143931537259223235453728
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cardston

In Cardston in May, humidity is 78%. With an average temperature of 10°C (51°F), this humidity feels like a cool, damp mist enveloping you, making travel feel somewhat brisk and invigorating, yet slightly uncomfortable for prolonged outdoor activities.

May Average Humidity in Cardston

This chart illustrates the average monthly humidity levels in Cardston, 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 Cardston is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%88%84%78%77%79%69%69%78%87%94%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cardston

In Cardston in May, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Cardston.

Maximum UV Index Levels in Cardston for May

The chart shows the monthly maximum UV Index (UVI) for Cardston 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 Cardston typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689997532
Data source: Cardston 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 Cardston Compares to Other Months

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

This table compares monthly weather conditions in Cardston, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)14 mm (0.5 inches)93%low
February Weather-9°C (17°F)39 mm (1.5 inches)91%moderate
March Weather-1°C (31°F)31 mm (1.2 inches)88%moderate
April Weather4°C (39°F)53 mm (2.1 inches)84%high
May Weather10°C (51°F)72 mm (2.9 inches)78%very high
June Weather15°C (59°F)59 mm (2.3 inches)77%very high
July Weather19°C (66°F)22 mm (0.9 inches)79%very high
August Weather18°C (65°F)32 mm (1.3 inches)69%very high
September Weather12°C (55°F)35 mm (1.4 inches)69%high
October Weather5°C (41°F)45 mm (1.8 inches)78%moderate
November Weather0°C (33°F)37 mm (1.5 inches)87%moderate
December Weather-4°C (25°F)28 mm (1.1 inches)94%low

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