Custer weather in March: Custer, South Dakota: normal highs, lows, rain and records for March
Custer in March has a normal high of 44°F and a normal low of 22°F, a daily mean of 33°F, rising from 39°F on the 1st to 47°F by the 31st. Measurable precipitation falls on 8 days in a normal March, 0.91 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 6°C and low of −5°C, 23 mm of precipitation in March.
- NOAA stationCuster County Airport
- Station IDUSW00094032
- Location43.73°N 103.61°W
- Elevation5,545 ft (1,690 m)
- Population1,829
- Jan 35° 15°
- Feb 35° 15°
- Mar 44° 22°
- Apr 50° 29°
- May 60° 38°
- Jun 71° 47°
- Jul 79° 54°
- Aug 78° 52°
- Sep 69° 43°
- Oct 54° 32°
- Nov 43° 22°
- Dec 35° 16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Custer in March?
The normal high is 44°F and the normal low 22°F, for a daily mean of 32.9°F. March is 7.8°F warmer than February and 6.4°F cooler than April. March is the 8th warmest month of the year in Custer and the 8th wettest. Across the month the normal high rises 8°F, from 39°F on March 1 to 47°F on March 31. From one year to the next March's mean temperature typically moves about 4.3°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 29°F and 37°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 32%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 39°F | 18°F | 24% | 8% |
| March 8 | 41°F | 20°F | 25% | 9% |
| March 15 | 44°F | 22°F | 27% | 10% |
| March 22 | 45°F | 24°F | 29% | 12% |
| March 31 | 47°F | 26°F | 32% | 15% |
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 | 18°F | 24% | 8% | 11 h 10 min |
| March 2 | 39°F | 18°F | 24% | 8% | 11 h 10 min |
| March 3 | 40°F | 18°F | 24% | 8% | 11 h 10 min |
| March 4 | 40°F | 19°F | 24% | 8% | 11 h 20 min |
| March 5 | 40°F | 19°F | 24% | 8% | 11 h 20 min |
| March 6 | 41°F | 19°F | 24% | 8% | 11 h 20 min |
| March 7 | 41°F | 20°F | 24% | 9% | 11 h 30 min |
| March 8 | 41°F | 20°F | 25% | 9% | 11 h 30 min |
| March 9 | 42°F | 20°F | 25% | 9% | 11 h 30 min |
| March 10 | 42°F | 21°F | 25% | 9% | 11 h 40 min |
| March 11 | 42°F | 21°F | 25% | 9% | 11 h 40 min |
| March 12 | 43°F | 21°F | 26% | 10% | 11 h 40 min |
| March 13 | 43°F | 22°F | 26% | 10% | 11 h 40 min |
| March 14 | 43°F | 22°F | 26% | 10% | 11 h 50 min |
| March 15 | 44°F | 22°F | 27% | 10% | 11 h 50 min |
| March 16 | 44°F | 23°F | 27% | 11% | 11 h 50 min |
| March 17 | 44°F | 23°F | 27% | 11% | 12 h |
| March 18 | 44°F | 23°F | 28% | 11% | 12 h |
| March 19 | 45°F | 23°F | 28% | 11% | 12 h |
| March 20 | 45°F | 24°F | 28% | 12% | 12 h 10 min |
| March 21 | 45°F | 24°F | 29% | 12% | 12 h 10 min |
| March 22 | 45°F | 24°F | 29% | 12% | 12 h 10 min |
| March 23 | 46°F | 24°F | 29% | 13% | 12 h 10 min |
| March 24 | 46°F | 24°F | 30% | 13% | 12 h 20 min |
| March 25 | 46°F | 25°F | 30% | 13% | 12 h 20 min |
| March 26 | 46°F | 25°F | 31% | 14% | 12 h 20 min |
| March 27 | 46°F | 25°F | 31% | 14% | 12 h 30 min |
| March 28 | 47°F | 25°F | 31% | 14% | 12 h 30 min |
| March 29 | 47°F | 25°F | 32% | 15% | 12 h 30 min |
| March 30 | 47°F | 26°F | 32% | 15% | 12 h 40 min |
| March 31 | 47°F | 26°F | 32% | 15% | 12 h 40 min |
- Normal high
- 44°FMarch average
- Normal low
- 22°FMarch average
- Precipitation
- 0.91 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 28
- Daylight
- 11 h 10 min to 12 h 40 minMarch 1 to March 31
- Sunshine
- 74%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094032; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Custer in March?
On a given March day the chance of 0.01 inch or more is 27% on average, highest around March 31 (32%). In all, 0.91 in falls on 8 days of a normal March.
In a normal March in Custer, 28 nights fall to freezing and 5 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094032.
How humid and windy is Custer in March?
At 3 p.m. the normal temperature is 44°F with 40% relative humidity and a dew point of 22°F; at 6 a.m. it is 29°F with 69% humidity. The wind averages 6.8 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 | 20°F | 69% | 4.9 mph | – |
| 9 a.m. | 39°F | 21°F | 48% | 8.1 mph | – |
| noon | 44°F | 21°F | 41% | 9.9 mph | – |
| 3 p.m. | 44°F | 22°F | 40% | 9.9 mph | – |
| 6 p.m. | 39°F | 22°F | 49% | 6.7 mph | – |
| 9 p.m. | 33°F | 22°F | 62% | 5.0 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094032. 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 Custer?
The warmest March temperature on this station's record (since 1999) is 78°F, on March 21, 2026; the coldest is −16°F, on March 2, 2002. The wettest March brought 2.40 in (2023).
The March mean against the 1991-2020 normal of 32.9°F: 2021 33.5°F (+0.6), 2022 32.5°F (−0.4), 2023 24.5°F (−8.4), 2024 33.1°F (+0.3), 2025 37.0°F (+4.1), 2026 40.9°F (+8.0). 4 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 33.5°F | +0.6°F | 1.77 in |
| 2022 | 32.5°F | −0.4°F | 1.14 in |
| 2023 | 24.5°F | −8.4°F | 2.40 in |
| 2024 | 33.1°F | +0.3°F | 1.28 in |
| 2025 | 37.0°F | +4.1°F | 0.88 in |
| 2026 | 40.9°F | +8.0°F | 0.16 in |
Source: records: ACIS, station USW00094032; recent months: ACIS, station USW00094032. Records and recent months use complete months only.
How does March in Custer compare across South Dakota?
Across the 100 places PlainClimate covers in South Dakota, March normal highs run from 37°F in Astoria to 54°F in Hot Springs; Custer's is 44°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.