Charleston weather in March: Charleston, South Carolina: normal highs, lows, rain and records for March
Charleston in March has a normal high of 70°F and a normal low of 47°F, a daily mean of 59°F, rising from 67°F on the 1st to 73°F by the 31st. Measurable precipitation falls on 8 days in a normal March, 3.35 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 21°C and low of 8°C, 85 mm of precipitation in March.
- NOAA stationCharleston International Airport
- Station IDUSW00013880
- Location32.90°N 80.04°W
- Elevation40 ft (12 m)
- From the center6 miles
- Population157,665
- Jan 60° 39°
- Feb 64° 42°
- Mar 70° 47°
- Apr 77° 55°
- May 84° 63°
- Jun 89° 70°
- Jul 91° 74°
- Aug 90° 73°
- Sep 85° 68°
- Oct 78° 58°
- Nov 69° 47°
- Dec 63° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Charleston in March?
The normal high is 70°F and the normal low 47°F, for a daily mean of 58.7°F. March is 6.0°F warmer than February and 7.1°F cooler than April. March is the 8th warmest month of the year in Charleston and the 7th wettest. Across the month the normal high rises 6°F, from 67°F on March 1 to 73°F on March 31. From one year to the next March's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Marchs in three average between 56°F and 62°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 28%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| March 1 | 67°F | 44°F | 28% | 18% |
| March 8 | 68°F | 46°F | 27% | 17% |
| March 15 | 70°F | 47°F | 26% | 17% |
| March 22 | 71°F | 49°F | 26% | 16% |
| March 31 | 73°F | 51°F | 26% | 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 | 67°F | 44°F | 28% | 18% | 11 h 30 min |
| March 2 | 67°F | 44°F | 28% | 18% | 11 h 30 min |
| March 3 | 67°F | 45°F | 27% | 18% | 11 h 30 min |
| March 4 | 68°F | 45°F | 27% | 18% | 11 h 30 min |
| March 5 | 68°F | 45°F | 27% | 17% | 11 h 30 min |
| March 6 | 68°F | 45°F | 27% | 17% | 11 h 40 min |
| March 7 | 68°F | 45°F | 27% | 17% | 11 h 40 min |
| March 8 | 68°F | 46°F | 27% | 17% | 11 h 40 min |
| March 9 | 69°F | 46°F | 27% | 17% | 11 h 40 min |
| March 10 | 69°F | 46°F | 27% | 17% | 11 h 50 min |
| March 11 | 69°F | 46°F | 26% | 17% | 11 h 50 min |
| March 12 | 69°F | 46°F | 26% | 17% | 11 h 50 min |
| March 13 | 70°F | 47°F | 26% | 17% | 11 h 50 min |
| March 14 | 70°F | 47°F | 26% | 17% | 11 h 50 min |
| March 15 | 70°F | 47°F | 26% | 17% | 12 h |
| March 16 | 70°F | 47°F | 26% | 17% | 12 h |
| March 17 | 70°F | 48°F | 26% | 17% | 12 h |
| March 18 | 71°F | 48°F | 26% | 17% | 12 h |
| March 19 | 71°F | 48°F | 26% | 17% | 12 h |
| March 20 | 71°F | 48°F | 26% | 16% | 12 h 10 min |
| March 21 | 71°F | 48°F | 26% | 16% | 12 h 10 min |
| March 22 | 71°F | 49°F | 26% | 16% | 12 h 10 min |
| March 23 | 72°F | 49°F | 26% | 16% | 12 h 10 min |
| March 24 | 72°F | 49°F | 26% | 16% | 12 h 10 min |
| March 25 | 72°F | 49°F | 26% | 16% | 12 h 20 min |
| March 26 | 72°F | 49°F | 26% | 16% | 12 h 20 min |
| March 27 | 73°F | 50°F | 26% | 16% | 12 h 20 min |
| March 28 | 73°F | 50°F | 26% | 16% | 12 h 20 min |
| March 29 | 73°F | 50°F | 26% | 17% | 12 h 20 min |
| March 30 | 73°F | 50°F | 26% | 17% | 12 h 30 min |
| March 31 | 73°F | 51°F | 26% | 17% | 12 h 30 min |
- Normal high
- 70°FMarch average
- Normal low
- 47°FMarch average
- Precipitation
- 3.35 inmonth total
- Days with precipitation
- 80.01 inch or more
- Nights at 32°F or colder
- 2
- Daylight
- 11 h 30 min to 12 h 30 minMarch 1 to March 31
- Days at 70°F or more
- 18
- Days at 80°F or more
- 5
- Sunshine
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013880; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Charleston in March?
On a given March day the chance of 0.01 inch or more is 27% on average, highest around March 1 (28%). In all, 3.35 in falls on 8 days of a normal March, 1 of them with an inch or more.
In a normal March in Charleston, 2 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013880.
How humid and windy is Charleston in March?
At 3 p.m. the normal temperature is 71°F with 45% relative humidity and a dew point of 49°F; at 6 a.m. it is 54°F with 85% humidity. The wind averages 9.1 mph, most often from the south-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. | 54°F | 50°F | 85% | 6.3 mph | 58% |
| 9 a.m. | 63°F | 51°F | 65% | 10.1 mph | 55% |
| noon | 70°F | 48°F | 46% | 11.4 mph | 47% |
| 3 p.m. | 71°F | 49°F | 45% | 13.2 mph | 47% |
| 6 p.m. | 66°F | 49°F | 54% | 11.5 mph | 54% |
| 9 p.m. | 60°F | 51°F | 73% | 7.5 mph | 60% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013880. 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 Charleston?
The warmest March temperature on Charleston's official record (since 1937) is 90°F, on March 18, 1963; the coldest is 15°F, on March 3, 1980. The wettest March brought 11.11 in (1959); the snowiest, 2.0 inches (1969).
The March mean against the 1991-2020 normal of 58.7°F: 2021 60.5°F (+1.8), 2022 62.1°F (+3.4), 2023 61.9°F (+3.2), 2024 64.0°F (+5.3), 2025 60.7°F (+2.0), 2026 63.7°F (+5.0). 6 of 6 ran warmer than normal.
| March | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 60.5°F | +1.8°F | 2.81 in |
| 2022 | 62.1°F | +3.4°F | 2.08 in |
| 2023 | 61.9°F | +3.2°F | 1.54 in |
| 2024 | 64.0°F | +5.3°F | 8.12 in |
| 2025 | 60.7°F | +2.0°F | 2.29 in |
| 2026 | 63.7°F | +5.0°F | 0.37 in |
Source: records: ACIS, NWS threaded record CHSthr; recent months: ACIS, station USW00013880. Records and recent months use complete months only.
How does March in Charleston compare across South Carolina?
Across the 73 places PlainClimate covers in South Carolina, March normal highs run from 56°F in Caesars Head to 72°F in Hampton; Charleston's is 70°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Charleston in February64°F by day, 42°F at night
- Charleston in April77°F by day, 55°F at night
- Charleston through the yearEvery month, frost dates, records and recent years
- South Carolina in MarchThe statewide normal and the warmest and coolest places
- Hampton: South Carolina's warmest Marchnormal high 72°F