Great Falls weather in March: Great Falls, Montana: normal highs, lows, rain and records for March
Great Falls in March has a normal high of 46°F and a normal low of 22°F, a daily mean of 34°F, rising from 41°F on the 1st to 51°F by the 31st. Measurable precipitation falls on 8 days in a normal March, 0.68 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 8°C and low of −5°C, 17 mm of precipitation and 26 cm of snow in March.
- NOAA stationGreat Falls Airport
- Station IDUSW00024143
- Location47.47°N 111.38°W
- Elevation3,664 ft (1,117 m)
- From the center4 miles
- Population60,013
- Jan 35° 15°
- Feb 37° 15°
- Mar 46° 22°
- Apr 55° 30°
- May 65° 38°
- Jun 73° 46°
- Jul 84° 51°
- Aug 83° 50°
- Sep 72° 43°
- Oct 57° 33°
- Nov 44° 24°
- Dec 36° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Great Falls in March?
The normal high is 46°F and the normal low 22°F, for a daily mean of 34.1°F. March is 7.9°F warmer than February and 8.3°F cooler than April. March is the 8th warmest month of the year in Great Falls and the 8th wettest, and the snowiest. Across the month the normal high rises 10°F, from 41°F on March 1 to 51°F on March 31. From one year to the next March's mean temperature typically moves about 5.9°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 28°F and 40°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 29%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 41°F | 17°F | 28% | 7% |
| March 8 | 43°F | 19°F | 27% | 7% |
| March 15 | 46°F | 22°F | 27% | 8% |
| March 22 | 48°F | 24°F | 27% | 9% |
| March 31 | 51°F | 27°F | 29% | 12% |
Every day of March: normal high, low and chance of precipitation (warmest afternoon March 31, coldest night March 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| March 1 | 41°F | 17°F | 28% | 7% | 11 h |
| March 2 | 41°F | 17°F | 28% | 7% | 11 h |
| March 3 | 41°F | 18°F | 28% | 7% | 11 h 10 min |
| March 4 | 42°F | 18°F | 27% | 7% | 11 h 10 min |
| March 5 | 42°F | 18°F | 27% | 7% | 11 h 10 min |
| March 6 | 43°F | 19°F | 27% | 7% | 11 h 20 min |
| March 7 | 43°F | 19°F | 27% | 7% | 11 h 20 min |
| March 8 | 43°F | 19°F | 27% | 7% | 11 h 20 min |
| March 9 | 44°F | 20°F | 27% | 7% | 11 h 30 min |
| March 10 | 44°F | 20°F | 27% | 7% | 11 h 30 min |
| March 11 | 44°F | 20°F | 27% | 7% | 11 h 30 min |
| March 12 | 45°F | 21°F | 27% | 8% | 11 h 40 min |
| March 13 | 45°F | 21°F | 27% | 8% | 11 h 40 min |
| March 14 | 46°F | 21°F | 27% | 8% | 11 h 50 min |
| March 15 | 46°F | 22°F | 27% | 8% | 11 h 50 min |
| March 16 | 46°F | 22°F | 27% | 8% | 11 h 50 min |
| March 17 | 47°F | 23°F | 27% | 8% | 12 h |
| March 18 | 47°F | 23°F | 27% | 9% | 12 h |
| March 19 | 47°F | 23°F | 27% | 9% | 12 h |
| March 20 | 48°F | 24°F | 27% | 9% | 12 h 10 min |
| March 21 | 48°F | 24°F | 27% | 9% | 12 h 10 min |
| March 22 | 48°F | 24°F | 27% | 9% | 12 h 10 min |
| March 23 | 49°F | 25°F | 27% | 10% | 12 h 20 min |
| March 24 | 49°F | 25°F | 28% | 10% | 12 h 20 min |
| March 25 | 49°F | 25°F | 28% | 10% | 12 h 20 min |
| March 26 | 50°F | 26°F | 28% | 10% | 12 h 30 min |
| March 27 | 50°F | 26°F | 28% | 11% | 12 h 30 min |
| March 28 | 50°F | 26°F | 28% | 11% | 12 h 30 min |
| March 29 | 50°F | 26°F | 29% | 11% | 12 h 40 min |
| March 30 | 51°F | 27°F | 29% | 12% | 12 h 40 min |
| March 31 | 51°F | 27°F | 29% | 12% | 12 h 40 min |
- Normal high
- 46°FMarch average
- Normal low
- 22°FMarch average
- Precipitation
- 0.68 inmonth total
- Days with precipitation
- 80.01 inch or more
- Snowfall
- 10.1 inmonth total
- Nights at 32°F or colder
- 25
- Daylight
- 11 h to 12 h 40 minMarch 1 to March 31
- Days at 70°F or more
- 1
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024143; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Great Falls in March?
On a given March day the chance of 0.01 inch or more is 27% on average, highest around March 31 (29%). In all, 0.68 in falls on 8 days of a normal March.
In a normal March in Great Falls, 25 nights fall to freezing, 5 days stay below freezing all day and snowfall averages 10.1 inches.
Snow falls on 7 days in a normal March, and an inch or more covers the ground on 8 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024143.
How humid and windy is Great Falls in March?
At 3 p.m. the normal temperature is 47°F with 38% relative humidity and a dew point of 23°F; at 6 a.m. it is 31°F with 72% humidity. The wind averages 11.6 mph, most often from the west-southwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 31°F | 22°F | 72% | 9.6 mph | 55% |
| 9 a.m. | 38°F | 24°F | 57% | 12.4 mph | 55% |
| noon | 45°F | 23°F | 43% | 13.9 mph | 50% |
| 3 p.m. | 47°F | 23°F | 38% | 14.4 mph | 46% |
| 6 p.m. | 44°F | 23°F | 43% | 12.6 mph | 50% |
| 9 p.m. | 37°F | 24°F | 60% | 10.4 mph | 56% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024143. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for March in Great Falls?
The warmest March temperature on Great Falls's official record (since 1891) is 78°F, on March 29, 1978; the coldest is −32°F, on March 10, 1932. The wettest March brought 2.27 in (1908); the snowiest, 27.8 inches (2005).
The March mean against the 1991-2020 normal of 34.1°F: 2021 39.1°F (+5.0), 2022 36.3°F (+2.2), 2023 26.0°F (−8.1), 2024 31.6°F (−2.5), 2025 40.0°F (+5.9), 2026 40.0°F (+5.9). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 39.1°F | +5.0°F | 0.42 in |
| 2022 | 36.3°F | +2.2°F | 0.79 in |
| 2023 | 26.0°F | −8.1°F | 1.23 in |
| 2024 | 31.6°F | −2.5°F | 0.70 in |
| 2025 | 40.0°F | +5.9°F | 0.75 in |
| 2026 | 40.0°F | +5.9°F | 1.42 in |
Source: records: ACIS, NWS threaded record GTFthr; recent months: ACIS, station USW00024143. Records and recent months use complete months only.
How does March in Great Falls compare across Montana?
Across the 141 places PlainClimate covers in Montana, March normal highs run from 36°F in Westby to 53°F in Hardin; Great Falls's is 46°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.