Great Falls Weather in March
Average highs run from 61°F on March 1 to 70°F on March 31, and lows from 36°F to 44°F. Normal precipitation for the month is 4.03 in over about 9 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 65°F
- Average low
- 40°F
- Precipitation
- 4.03 in
- Record high
- 90°FMar 21, 1935
- Record low
- 4°FMar 3, 1980
- Chance of a freeze
- 95%
- Daylight
- 11 h 27 min to 12 h 32 min
- Cloud cover
- 56%
- Humidity
- 79%
- Dew point
- 45°F
- Wind
- 4.7 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Mar 1 | 61°F | 36°F | 84°F 1918 | 17°F 1980 | 32% | 0% |
| Mar 2 | 61°F | 36°F | 81°F 1976 | 14°F 1980 | 32% | 0% |
| Mar 3 | 61°F | 37°F | 86°F 1976 | 4°F 1980 | 32% | 0% |
| Mar 4 | 62°F | 37°F | 84°F 1976 | 14°F 1943 | 32% | 0% |
| Mar 5 | 62°F | 37°F | 83°F 1955 | 11°F 1960 | 31% | 0% |
| Mar 6 | 62°F | 37°F | 83°F 1955 | 12°F 1960 | 31% | 0% |
| Mar 7 | 62°F | 37°F | 84°F 1974 | 17°F 1901 | 31% | 0% |
| Mar 8 | 63°F | 38°F | 86°F 1974 | 14°F 1920 | 31% | 0% |
| Mar 9 | 63°F | 38°F | 85°F 1974 | 15°F 1996 | 31% | 0% |
| Mar 10 | 63°F | 38°F | 80°F 1925 | 14°F 1932 | 31% | 0% |
| Mar 11 | 64°F | 38°F | 85°F 2026 | 20°F 1934 | 31% | 0% |
| Mar 12 | 64°F | 39°F | 87°F 2026 | 19°F 1934 | 30% | 0% |
| Mar 13 | 64°F | 39°F | 87°F 1990 | 19°F 2022 | 30% | 0% |
| Mar 14 | 64°F | 39°F | 84°F 1973 | 16°F 1926 | 30% | 0% |
| Mar 15 | 65°F | 39°F | 86°F 2012 | 17°F 1993 | 30% | 0% |
| Mar 16 | 65°F | 40°F | 84°F 1921 | 18°F 2017 | 30% | 0% |
| Mar 17 | 65°F | 40°F | 84°F 2015 | 22°F 1932 | 30% | 0% |
| Mar 18 | 66°F | 40°F | 87°F 1945 | 21°F 1941 | 30% | 0% |
| Mar 19 | 66°F | 40°F | 88°F 1927 | 20°F 1902 | 30% | 0% |
| Mar 20 | 66°F | 41°F | 85°F 1948 | 22°F 1923 | 30% | 0% |
| Mar 21 | 66°F | 41°F | 90°F 1935 | 20°F 1965 | 30% | 0% |
| Mar 22 | 67°F | 41°F | 86°F 1907 | 24°F 1996 | 29% | 0% |
| Mar 23 | 67°F | 41°F | 87°F 1995 | 25°F 1930 | 29% | 0% |
| Mar 24 | 67°F | 42°F | 90°F 1929 | 27°F 1915 | 29% | 0% |
| Mar 25 | 68°F | 42°F | 90°F 1929 | 20°F 1940 | 29% | 0% |
| Mar 26 | 68°F | 42°F | 84°F 1967 | 23°F 1940 | 29% | 0% |
| Mar 27 | 68°F | 42°F | 84°F 1956 | 18°F 1955 | 29% | 0% |
| Mar 28 | 69°F | 43°F | 87°F 2020 | 25°F 1955 | 29% | 0% |
| Mar 29 | 69°F | 43°F | 86°F 1907 | 21°F 2015 | 29% | 0% |
| Mar 30 | 69°F | 43°F | 86°F 1910 | 25°F 1964 | 29% | 0% |
| Mar 31 | 70°F | 44°F | 86°F 1910 | 24°F 1964 | 29% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 6:53 AM, sunset 6:20 PM
- March 31
- sunrise 7:12 AM, sunset 7:44 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00389327 (Winnsboro), public domain. Records: NOAA GHCN-Daily, station USC00389350, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.