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Hanahan, South Carolina

City in Berkeley County, South Carolina

Air quality

The air at Hanahan

Index 28, good, led by fine particles. Read at 11 PM from its reporting area, Charleston (SC), 10 miles off.

28Good
  • Fine particles (PM2.5)28Good20.5 mi
  • Ozone18Good8 ppb20.5 mi
  • Coarse particles (PM10)12Good-
  • Nitrogen dioxide7Good7 ppb3.8 mi
  • Sulfur dioxide0Good0.1 ppb3.8 mi

The days ahead

Yesterday measured 44, good.

Smoke, the next 45 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Hanahan

None in the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Hanahan, the next 45 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 3 AM.

FriSat

On the radar over Hanahan, South CarolinaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Hanahan, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

CharlestonCHS

At an airfield/2.4 mi away/33 ft/1 ft above here

temp, wind, gust, visibility, precip, pressure

Rank5of 1,128

Elevated Roadway I-26SC020

Beside a road/8.7 mi away/13 ft/19 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Hanahan 0.8 SSWSC-BK-64

In a volunteer observer's own ground/0.4 mi away/106 ft/74 ft above here

precip, snowfall, snow depth

Rank-

Custom HouseCHLS1

At a cooperative observer's station/10.9 mi away/39 ft/7 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Charleston, drawn

The nearest airport reporting now, 2.4 mi from Hanahan, South Carolina. From its report of Oct 15, 2026, 11:56 PM local time: 3 of its 6 sheets.

The sky

A few clouds at 25,000 ft; visibility 10 mi or more.

Section of the sky over Charleston, height above the station to scale: a few clouds cloud with its base at 25,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CHSFIG. A THE SKY OVER CHARLESTONSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05,00010,00015,00020,00025,00030,00035,00040,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTFEW 25,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLECharleston, the skySTATION REPORT · ASOS CHSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CHS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

71.0 F with a dew point of 68.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 25,000 ft.

Chart of the air at Charleston: temperature 71.0 degrees Fahrenheit and dew point 68.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 25,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CHSFIG. B THE AIR AT CHARLESTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00060 F70 F80 FSATURATES 700 FT ABOVE THE STATION, AT 67.2 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, FEW 25,000 FTTEMPERATURE 71.0 FDEW POINT 68.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLECharleston, the airSTATION REPORT · ASOS CHSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CHS-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (190 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Charleston, north up: blowing from 190 degrees, the south, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CHSFIG. C THE WIND AT CHARLESTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 190°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECharleston, the windSTATION REPORT · ASOS CHSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CHS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Charleston, in 6 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in South Carolina

21 places, each with its own forecast and its own instruments.

Near Hanahan

The nearest places, each with its own forecast and the instruments nearest it.

Near Hanahan

River and lake gauges