May Weather in Columbia Falls, United States

Last updated: June 24, 2025

In May, the average temperature in Columbia Falls, United States hovers around 11°C (52°F), with a range that can dip as low as 1°C (34°F) and peak at 29°C (84°F). Expect approximately 110 mm (4.3 in) of precipitation spread over 12 days, along with an average humidity of 76%. Enjoy the seasonal charm, but be prepared for a mix of weather!

May Temperature in Columbia Falls

In May in Columbia Falls, the average temperature is 11°C (52°F). Maximum temperatures can reach 29°C (84°F), while minimum temperatures can drop to as low as 1°C (34°F). It's a great time for travelers to enjoy pleasant weather and experience the diverse climate of Columbia Falls.

May Weather in Columbia Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Columbia Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Columbia Falls, May typically has an average temperature of 11°C (52°F), with highs reaching up to 29°C (84°F) and lows dropping to around 1°C (34°F).

Data source: Temperature data for Columbia Falls generated using information from the Copernicus Climate Change Service.

May Precipitation in Columbia Falls

In Columbia Falls in May, the precipitation amount is 110 mm (4.3 in) over a span of 12 days.

May Precipitation Trends in Columbia Falls

The chart displays monthly precipitation patterns in Columbia Falls, 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 Columbia Falls, May typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Columbia Falls

In Columbia Falls in May, humidity is 76%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make outdoor exploration feel uncomfortable and heavy, often leaving travelers longing for a warm café to escape the cool, moist air.

May Average Humidity in Columbia Falls

This chart illustrates the average monthly humidity levels in Columbia Falls, 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 Columbia Falls is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Columbia Falls

In Columbia Falls 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 Columbia Falls.

Maximum UV Index Levels in Columbia Falls for May

The chart shows the monthly maximum UV Index (UVI) for Columbia Falls 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 Columbia Falls typically reaches 9, which falls under the very high exposure category.

Data source: Columbia Falls 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 Columbia Falls Compares to Other Months

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

This table compares monthly weather conditions in Columbia Falls, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	105 mm (4.1 inches)	88%	low
February Weather	-4°C (26°F)	96 mm (3.8 inches)	88%	moderate
March Weather	0°C (32°F)	80 mm (3.1 inches)	85%	moderate
April Weather	6°C (42°F)	138 mm (5.4 inches)	81%	high
May Weather	11°C (52°F)	110 mm (4.3 inches)	76%	very high
June Weather	16°C (61°F)	98 mm (3.9 inches)	74%	very high
July Weather	19°C (66°F)	88 mm (3.5 inches)	74%	very high
August Weather	19°C (67°F)	80 mm (3.2 inches)	74%	very high
September Weather	16°C (61°F)	93 mm (3.7 inches)	77%	high
October Weather	10°C (51°F)	119 mm (4.7 inches)	82%	moderate
November Weather	4°C (39°F)	138 mm (5.4 inches)	85%	moderate
December Weather	-2°C (29°F)	141 mm (5.5 inches)	84%	low