Duluth weather in March: Duluth, Minnesota: normal highs, lows, rain and records for March
Duluth in March has a normal high of 36°F and a normal low of 18°F, a daily mean of 27°F, rising from 30°F on the 1st to 42°F by the 31st. Measurable precipitation falls on 10 days in a normal March, 1.46 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 2°C and low of −8°C, 37 mm of precipitation and 33 cm of snow in March.
- NOAA stationDuluth International Airport
- Station IDUSW00014913
- Location46.84°N 92.21°W
- Elevation1,428 ft (435 m)
- From the center6 miles
- Population87,986
- Jan 20° 2°
- Feb 25° 6°
- Mar 36° 18°
- Apr 49° 30°
- May 63° 41°
- Jun 72° 50°
- Jul 78° 56°
- Aug 76° 55°
- Sep 67° 47°
- Oct 53° 36°
- Nov 37° 23°
- Dec 25° 10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Duluth in March?
The normal high is 36°F and the normal low 18°F, for a daily mean of 27.0°F. March is 11.6°F warmer than February and 12.5°F cooler than April. March is the 9th warmest month of the year in Duluth and the 10th wettest. Across the month the normal high rises 12°F, from 30°F on March 1 to 42°F on March 31. From one year to the next March's mean temperature typically moves about 4.8°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 22°F and 32°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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 30°F | 12°F | 31% | 12% |
| March 8 | 33°F | 15°F | 31% | 13% |
| March 15 | 36°F | 18°F | 32% | 14% |
| March 22 | 39°F | 20°F | 33% | 15% |
| March 31 | 42°F | 24°F | 35% | 17% |
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 | 30°F | 12°F | 31% | 12% | 11 h |
| March 2 | 31°F | 12°F | 31% | 13% | 11 h 10 min |
| March 3 | 31°F | 12°F | 31% | 13% | 11 h 10 min |
| March 4 | 32°F | 13°F | 31% | 13% | 11 h 10 min |
| March 5 | 32°F | 13°F | 31% | 13% | 11 h 20 min |
| March 6 | 32°F | 14°F | 31% | 13% | 11 h 20 min |
| March 7 | 33°F | 14°F | 31% | 13% | 11 h 20 min |
| March 8 | 33°F | 15°F | 31% | 13% | 11 h 30 min |
| March 9 | 34°F | 15°F | 31% | 13% | 11 h 30 min |
| March 10 | 34°F | 15°F | 31% | 13% | 11 h 30 min |
| March 11 | 34°F | 16°F | 31% | 14% | 11 h 40 min |
| March 12 | 35°F | 16°F | 31% | 14% | 11 h 40 min |
| March 13 | 35°F | 17°F | 31% | 14% | 11 h 40 min |
| March 14 | 36°F | 17°F | 32% | 14% | 11 h 50 min |
| March 15 | 36°F | 18°F | 32% | 14% | 11 h 50 min |
| March 16 | 36°F | 18°F | 32% | 14% | 11 h 50 min |
| March 17 | 37°F | 18°F | 32% | 14% | 12 h |
| March 18 | 37°F | 19°F | 32% | 14% | 12 h |
| March 19 | 37°F | 19°F | 32% | 15% | 12 h |
| March 20 | 38°F | 20°F | 32% | 15% | 12 h 10 min |
| March 21 | 38°F | 20°F | 33% | 15% | 12 h 10 min |
| March 22 | 39°F | 20°F | 33% | 15% | 12 h 10 min |
| March 23 | 39°F | 21°F | 33% | 15% | 12 h 20 min |
| March 24 | 39°F | 21°F | 33% | 15% | 12 h 20 min |
| March 25 | 40°F | 22°F | 34% | 16% | 12 h 20 min |
| March 26 | 40°F | 22°F | 34% | 16% | 12 h 30 min |
| March 27 | 41°F | 22°F | 34% | 16% | 12 h 30 min |
| March 28 | 41°F | 23°F | 35% | 16% | 12 h 30 min |
| March 29 | 41°F | 23°F | 35% | 16% | 12 h 40 min |
| March 30 | 42°F | 23°F | 35% | 17% | 12 h 40 min |
| March 31 | 42°F | 24°F | 35% | 17% | 12 h 40 min |
- Normal high
- 36°FMarch average
- Normal low
- 18°FMarch average
- Precipitation
- 1.46 inmonth total
- Days with precipitation
- 100.01 inch or more
- Snowfall
- 12.8 inmonth total
- Nights at 32°F or colder
- 28
- Daylight
- 11 h to 12 h 40 minMarch 1 to March 31
- Sunshine
- 73%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014913; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Duluth in March?
On a given March day the chance of 0.01 inch or more is 32% on average, highest around March 31 (35%). In all, 1.46 in falls on 10 days of a normal March.
In a normal March in Duluth, 28 nights fall to freezing, 12 days stay below freezing all day and snowfall averages 12.8 inches.
Snow falls on 8 days in a normal March, and an inch or more covers the ground on 27 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014913.
How humid and windy is Duluth in March?
At 3 p.m. the normal temperature is 39°F with 52% relative humidity and a dew point of 23°F; at 6 a.m. it is 27°F with 78% humidity. The wind averages 10.7 mph, most often from the northeast in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 27°F | 22°F | 78% | 9.5 mph | 40% |
| 9 a.m. | 33°F | 23°F | 66% | 11.5 mph | 46% |
| noon | 37°F | 23°F | 56% | 12.5 mph | 40% |
| 3 p.m. | 39°F | 23°F | 52% | 12.8 mph | 45% |
| 6 p.m. | 37°F | 23°F | 56% | 11.1 mph | 40% |
| 9 p.m. | 33°F | 23°F | 66% | 9.6 mph | 52% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014913. 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 Duluth?
The warmest March temperature on Duluth's official record (since 1874) is 81°F, on March 28, 1946; the coldest is −29°F, on March 2, 1989. The wettest March brought 5.12 in (1965); the snowiest, 48.2 inches (1917).
The March mean against the 1991-2020 normal of 27.0°F: 2021 33.2°F (+6.2), 2022 24.1°F (−2.9), 2023 23.0°F (−4.0), 2024 30.4°F (+3.4), 2025 30.4°F (+3.4), 2026 28.4°F (+1.4). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 33.2°F | +6.2°F | 2.64 in |
| 2022 | 24.1°F | −2.9°F | 1.15 in |
| 2023 | 23.0°F | −4.0°F | 2.49 in |
| 2024 | 30.4°F | +3.4°F | 1.89 in |
| 2025 | 30.4°F | +3.4°F | 1.36 in |
| 2026 | 28.4°F | +1.4°F | 1.32 in |
Source: records: ACIS, NWS threaded record DLHthr; recent months: ACIS, station USW00014913. Records and recent months use complete months only.
How does March in Duluth compare across Minnesota?
Across the 129 places PlainClimate covers in Minnesota, March normal highs run from 32°F in Hallock to 45°F in Winona; Duluth's is 36°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.