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May Weather in Kalispell, United States

Last updated: June 24, 2025

In May, the average temperature in Kalispell, United States hovers around 10°C (50°F). However, temperatures can vary significantly, with a minimum recorded at -6°C (22°F) and peaking at 28°C (83°F). This month also sees a total precipitation of 71 mm (2.8 in) over approximately 13 days, contributing to an average humidity level of 78%.

May Temperature in Kalispell

In May in Kalispell, the average temperature is 10°C (50°F), with maximums reaching 28°C (83°F) and minimums dipping as low as -6°C (22°F). Travelers should be prepared for a wide range of temperatures, ideal for both outdoor adventures and cozy indoor experiences.

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

The chart illustrates May temperature patterns in Kalispell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kalispell, May typically has an average temperature of 10°C (50°F), with highs reaching up to 28°C (83°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec241932395058666555413328
Data source: Temperature data for Kalispell 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 Kalispell

In Kalispell in May, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.

May Precipitation Trends in Kalispell

The chart displays monthly precipitation patterns in Kalispell, 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 Kalispell, May typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec608761887167232750768281
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Kalispell

In Kalispell in May humidity is 78%. With an average temperature of 10°C (50°F), this humidity feels like a chilly dampness that can seep into your clothes, making outdoor activities less enjoyable and requiring extra layers to stay warm as you explore the area.

May Average Humidity in Kalispell

This chart illustrates the average monthly humidity levels in Kalispell, 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 Kalispell 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 Kalispell

In Kalispell in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Kalispell.

Maximum UV Index Levels in Kalispell for May

The chart shows the monthly maximum UV Index (UVI) for Kalispell 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 Kalispell typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec246799997532
Data source: Kalispell 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 Kalispell Compares to Other Months

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

This table compares monthly weather conditions in Kalispell, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)60 mm (2.4 inches)93%low
February Weather-7°C (20°F)87 mm (3.4 inches)91%moderate
March Weather0°C (32°F)61 mm (2.4 inches)88%high
April Weather4°C (39°F)87 mm (3.4 inches)84%high
May Weather10°C (50°F)71 mm (2.8 inches)78%very high
June Weather15°C (59°F)67 mm (2.7 inches)77%very high
July Weather19°C (67°F)23 mm (0.9 inches)79%very high
August Weather18°C (66°F)27 mm (1.0 inches)69%very high
September Weather13°C (56°F)50 mm (2.0 inches)69%high
October Weather5°C (42°F)76 mm (3.0 inches)78%moderate
November Weather1°C (34°F)82 mm (3.2 inches)87%moderate
December Weather-2°C (28°F)81 mm (3.2 inches)94%low

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