Lewistown weather in March: Lewistown, Montana: normal highs, lows, rain and records for March
Lewistown in March has a normal high of 44°F and a normal low of 21°F, a daily mean of 33°F, rising from 39°F on the 1st to 49°F by the 31st. Measurable precipitation falls on 9 days in a normal March, 0.87 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 7°C and low of −6°C, 22 mm of precipitation in March.
- NOAA stationLewistown Municipal Airport
- Station IDUSW00024036
- Location47.05°N 109.46°W
- Elevation4,145 ft (1,263 m)
- Population6,204
- Jan 34° 13°
- Feb 35° 14°
- Mar 44° 21°
- Apr 53° 29°
- May 63° 37°
- Jun 71° 45°
- Jul 82° 51°
- Aug 81° 50°
- Sep 70° 42°
- Oct 56° 31°
- Nov 43° 21°
- Dec 35° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Lewistown in March?
The normal high is 44°F and the normal low 21°F, for a daily mean of 32.9°F. March is 8.3°F warmer than February and 8.0°F cooler than April. March is the 8th warmest month of the year in Lewistown and the 8th wettest. Across the month the normal high rises 10°F, from 39°F on March 1 to 49°F on March 31. From one year to the next March's mean temperature typically moves about 5.4°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 28°F and 38°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 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 39°F | 16°F | 28% | 6% |
| March 8 | 41°F | 19°F | 29% | 7% |
| March 15 | 44°F | 21°F | 30% | 9% |
| March 22 | 47°F | 24°F | 32% | 11% |
| March 31 | 49°F | 26°F | 34% | 14% |
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 | 39°F | 16°F | 28% | 6% | 11 h |
| March 2 | 39°F | 17°F | 28% | 6% | 11 h |
| March 3 | 39°F | 17°F | 28% | 7% | 11 h 10 min |
| March 4 | 40°F | 17°F | 28% | 7% | 11 h 10 min |
| March 5 | 40°F | 18°F | 28% | 7% | 11 h 10 min |
| March 6 | 41°F | 18°F | 28% | 7% | 11 h 20 min |
| March 7 | 41°F | 18°F | 28% | 7% | 11 h 20 min |
| March 8 | 41°F | 19°F | 29% | 7% | 11 h 30 min |
| March 9 | 42°F | 19°F | 29% | 7% | 11 h 30 min |
| March 10 | 42°F | 19°F | 29% | 8% | 11 h 30 min |
| March 11 | 43°F | 20°F | 29% | 8% | 11 h 40 min |
| March 12 | 43°F | 20°F | 29% | 8% | 11 h 40 min |
| March 13 | 43°F | 21°F | 29% | 8% | 11 h 40 min |
| March 14 | 44°F | 21°F | 30% | 9% | 11 h 50 min |
| March 15 | 44°F | 21°F | 30% | 9% | 11 h 50 min |
| March 16 | 45°F | 22°F | 30% | 9% | 11 h 50 min |
| March 17 | 45°F | 22°F | 30% | 10% | 12 h |
| March 18 | 45°F | 22°F | 31% | 10% | 12 h |
| March 19 | 46°F | 23°F | 31% | 10% | 12 h |
| March 20 | 46°F | 23°F | 31% | 11% | 12 h 10 min |
| March 21 | 46°F | 23°F | 32% | 11% | 12 h 10 min |
| March 22 | 47°F | 24°F | 32% | 11% | 12 h 10 min |
| March 23 | 47°F | 24°F | 32% | 12% | 12 h 20 min |
| March 24 | 47°F | 24°F | 32% | 12% | 12 h 20 min |
| March 25 | 48°F | 25°F | 33% | 12% | 12 h 20 min |
| March 26 | 48°F | 25°F | 33% | 13% | 12 h 30 min |
| March 27 | 48°F | 25°F | 33% | 13% | 12 h 30 min |
| March 28 | 48°F | 25°F | 33% | 13% | 12 h 30 min |
| March 29 | 49°F | 26°F | 34% | 13% | 12 h 40 min |
| March 30 | 49°F | 26°F | 34% | 14% | 12 h 40 min |
| March 31 | 49°F | 26°F | 34% | 14% | 12 h 40 min |
- Normal high
- 44°FMarch average
- Normal low
- 21°FMarch average
- Precipitation
- 0.87 inmonth total
- Days with precipitation
- 90.01 inch or more
- Nights at 32°F or colder
- 27
- Daylight
- 11 h to 12 h 40 minMarch 1 to March 31
- Sunshine
- 72%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00024036; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Lewistown in March?
On a given March day the chance of 0.01 inch or more is 30% on average, highest around March 31 (34%). In all, 0.87 in falls on 9 days of a normal March.
In a normal March in Lewistown, 27 nights fall to freezing and 5 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00024036.
How humid and windy is Lewistown in March?
At 3 p.m. the normal temperature is 45°F with 41% relative humidity and a dew point of 23°F; at 6 a.m. it is 29°F with 73% humidity. The wind averages 9.7 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 29°F | 21°F | 73% | 8.0 mph | – |
| 9 a.m. | 37°F | 23°F | 57% | 9.5 mph | – |
| noon | 43°F | 23°F | 44% | 11.5 mph | – |
| 3 p.m. | 45°F | 23°F | 41% | 12.0 mph | – |
| 6 p.m. | 42°F | 24°F | 47% | 10.3 mph | – |
| 9 p.m. | 35°F | 24°F | 65% | 9.1 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024036. 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 Lewistown?
The warmest March temperature on this station's record (since 1896) is 77°F, on March 20, 1910; the coldest is −34°F, on March 3, 2019. The wettest March brought 3.16 in (1898); the snowiest, 41.0 inches (1954).
The March mean against the 1991-2020 normal of 32.9°F: 2021 36.8°F (+3.9), 2022 33.1°F (+0.2), 2023 25.3°F (−7.6), 2024 30.8°F (−2.1), 2025 37.1°F (+4.2), 2026 37.7°F (+4.8). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 36.8°F | +3.9°F | 0.24 in |
| 2022 | 33.1°F | +0.2°F | 0.39 in |
| 2023 | 25.3°F | −7.6°F | 0.37 in |
| 2024 | 30.8°F | −2.1°F | 0.55 in |
| 2025 | 37.1°F | +4.2°F | 0.73 in |
| 2026 | 37.7°F | +4.8°F | 2.25 in |
Source: records: ACIS, station USW00024036; recent months: ACIS, station USW00024036. Records and recent months use complete months only.
How does March in Lewistown 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; Lewistown's is 44°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.