March Weather in Great Falls, United States

Last updated: June 24, 2025

In March, the average temperature in Great Falls, United States hovers around 8°C (46°F), with a minimum drop to -7°C (19°F) and a peak reaching 27°C (81°F). Expect 84 mm (3.3 in) of precipitation spread over 10 days, accompanied by a high average humidity of 83%. Enjoy the unique weather patterns this month brings!

March Temperature in Great Falls

In March in Great Falls, the average temperature is 8°C (46°F), with maximums reaching up to 27°C (81°F) and minimums dropping as low as -7°C (19°F). Travelers should be prepared for a wide range of temperatures and pack accordingly for both warm and cold conditions.

March Weather in Great Falls: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Great Falls, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Great Falls, March typically has an average temperature of 8°C (46°F), with highs reaching up to 27°C (81°F) and lows dropping to around -7°C (19°F).

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

March Precipitation in Great Falls

In Great Falls in March, the precipitation amount is 84 mm (3.3 in) over a span of 10 days.

March Precipitation Trends in Great Falls

The chart displays monthly precipitation patterns in Great Falls, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Great Falls, March typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 10 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Great Falls

In Great Falls in March, humidity is 83%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making even short outings feel quite uncomfortable and prompting travelers to bundle up and seek shelter more frequently.

March Average Humidity in Great Falls

This chart illustrates the average monthly humidity levels in Great Falls, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Great Falls is approximately 83%, offering insight into how humid the weather typically is during this month.

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

March UV Index in Great Falls

In Great Falls in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Great Falls.

Maximum UV Index Levels in Great Falls for March

The chart shows the monthly maximum UV Index (UVI) for Great Falls in March, 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 March, the maximum UV index in Great Falls typically reaches 7, which falls under the high exposure category.

Data source: Great Falls March 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 March Weather in Great Falls Compares to Other Months

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

This table compares monthly weather conditions in Great Falls, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (37°F)	60 mm (2.4 inches)	84%	moderate
February Weather	5°C (41°F)	98 mm (3.9 inches)	83%	moderate
March Weather	8°C (46°F)	84 mm (3.3 inches)	83%	high
April Weather	13°C (57°F)	99 mm (3.9 inches)	81%	very high
May Weather	19°C (66°F)	132 mm (5.2 inches)	78%	very high
June Weather	24°C (75°F)	118 mm (4.7 inches)	79%	very high
July Weather	27°C (81°F)	141 mm (5.5 inches)	74%	very high
August Weather	25°C (77°F)	150 mm (5.9 inches)	72%	very high
September Weather	22°C (72°F)	102 mm (4.0 inches)	75%	very high
October Weather	16°C (62°F)	107 mm (4.2 inches)	81%	high
November Weather	8°C (47°F)	86 mm (3.4 inches)	85%	moderate
December Weather	5°C (41°F)	94 mm (3.7 inches)	84%	moderate