nomadseason

March Weather in Great Falls, United States

Last updated: June 24, 2025

In Great Falls, United States, the average temperature in March hovers around 13°C (56°F). However, be prepared for a range of temperatures; it can dip to a chilly -4°C (25°F) or soar to a warm 30°C (86°F). During this month, expect 83 mm (3.3 in) of precipitation spread across approximately 11 days, with an average humidity level of 84%, making for quite a damp atmosphere.

March Temperature in Great Falls

In March in Great Falls, the average temperature is 13°C (56°F). Maximum temperatures can reach 30°C (86°F), while the minimum can drop as low as -4°C (25°F). Travelers should be prepared for a wide range of weather conditions during this time.

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 13°C (56°F), with highs reaching up to 30°C (86°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec475256647277817976675449
Data source: Temperature data for Great Falls generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Great Falls

In Great Falls in March, the precipitation amount is 83 mm (3.3 in) over the course of 11 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 83 mm (3.3 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec89124831011121011241291027785131
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Great Falls

In Great Falls in March, humidity is 84%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel cooler and more uncomfortable for traveling, as the air clings to your skin and weighs you down with a sense of heaviness.

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 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%84%82%83%82%80%74%75%79%87%87%
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 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 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810101111109864
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.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)89 mm (3.5 inches)86%moderate
February Weather11°C (52°F)124 mm (4.9 inches)85%high
March Weather13°C (56°F)83 mm (3.3 inches)84%very high
April Weather18°C (64°F)101 mm (4.0 inches)82%very high
May Weather22°C (72°F)112 mm (4.4 inches)83%very high
June Weather25°C (78°F)101 mm (4.0 inches)82%extreme
July Weather27°C (81°F)124 mm (4.9 inches)80%extreme
August Weather26°C (80°F)129 mm (5.1 inches)74%very high
September Weather24°C (76°F)102 mm (4.0 inches)75%very high
October Weather20°C (68°F)77 mm (3.0 inches)79%very high
November Weather12°C (54°F)85 mm (3.3 inches)87%high
December Weather10°C (50°F)131 mm (5.1 inches)87%moderate

Compare Great Falls's Climate with Cities Worldwide