Charleston County Heating & Cooling Services

The Charleston County climate record

The station for this county's metro is CHARLESTON INTL AP, SC US, and its NOAA 1991-2020 normals are the source of every figure in this section. Precipitation averages 52.51 inches a year; the temperature record averages 66.5 degrees, built from 64.3 days at 90 or above and 22.4 nights at or below freezing; the workload totals 1,844 heating degree days and 2,434 cooling degree days. Charleston County is read through that record throughout this page.

Humidity in Charleston County also divides by code. The county's 26 ZIP codes — 29401, 29403, 29404, 29405 at the head of the list — spread 918 square miles of housing under the same wet record: 52.51 inches of precipitation a year and 2,434 cooling degree days of load, read at CHARLESTON INTL AP, SC US. Drains, coils and blowers meet that record in every code, but the housing they serve was fitted decade by decade, so the moisture diary is written code by code rather than county-wide at once.

Set the county inside its metro and the picture completes. Charleston County answers to the Charleston metro's data — its housing profile, its problem ranking, its climate station — but the county is where that data touches ground: 10 communities, 26 ZIP codes, one county's worth of systems ageing under the record kept at CHARLESTON INTL AP, SC US. This page is that ground-level reading, kept separate from the metro page so the local detail is never averaged away.

26 ZIP codes reach into Charleston County's 918 square miles, among them 29401, 29403, 29404, 29405 — an average of 35.3 square miles of county ground per code. The codes are more than a mailing grid here: they are how the county's service ground divides in practice, each code holding its own mix of housing eras, its own streets of systems ageing on their own schedules. A call in one code and a call in the next can be the same fault in different decades of house.

The counties around Charleston County include Berkeley County, Dorchester County, and the whole group shares the Charleston metro's climate record from CHARLESTON INTL AP, SC US. What the neighbours do not share is this county's ground: 918 square miles, 26 ZIP codes, a centroid southeast of the Charleston metro's centre. Service patterns cross the county line freely — a cold week fills diaries on both sides of it — but the mix of housing and systems on each side is its own, which is why each county in the group carries its own page.

There is a geography to Charleston County's seasons that the totals flatten. The county lies southeast of the Charleston metro's centre, roughly 18 miles from the centre the record is measured against, and its 918 square miles do not meet a hot week or a cold snap in one voice: the ground nearer the metro and the ground at the county's far edge live the same 64.3 hot days and 22.4 freezing nights through different housing, fitted in different decades. One station record, one county, two ends of every season.

Communities and housing in Charleston County

The county's place list tells its own story. Charleston (152,014 residents) is the largest of the 10 communities the record names for Charleston County, with North Charleston (117,460 residents) behind it and Mount Pleasant and Ladson further down the list. A technician working this county works all of those places in a single week, and the systems change character with the address: the era a community was built in decides whether the call is about an ageing furnace, a condenser at the end of its summers, or ductwork that predates the equipment it now serves.

The housing behind Charleston County's systems is the Charleston metro's housing, read at county scale. The largest single share of the metro's homes was built since 2000 — 42.6% of the stock — with 28.6% of homes predating 1980 and 42.6% arriving since 2000, around a median build year of 1995. Inside the county those eras divide by community and by street, but the proportions set the diary: a stock weighted to since 2000 produces the service patterns of that era's systems, ducts and insulation, in this county as across the metro.

There is a reason the coverage on this page is described county-first. Heating and cooling demand is generated house by house, and houses sit in counties: in Charleston County's case, across 918 square miles that hold 10 listed communities and 26 ZIP codes, southeast of the Charleston metro's centre. The metro frame matters — the station, the housing eras, the problem ranking all come from it — but the county is where the frame touches the ground, and the ground is where the systems are.

Our role in Charleston County, stated plainly

TempReach USA is not an HVAC company. We employ no heating or cooling technicians, we run no service trucks, and we do not carry out HVAC work of any kind. This website and its call center exist for one purpose: to connect homeowners with independent local heating and cooling professionals who serve their area. When you call the number on this site, your call is routed to such a professional. From that point, everything about the job belongs to that professional and to you: the assessment, the work itself, the scheduling, what you are charged, and the terms of any agreement you reach. The professional who takes your job is solely responsible for it. The technician who arrives at your home runs their own business; they are not an employee, agent or subcontractor of TempReach USA. Our part is the information on these pages — assembled from Census Bureau housing data and NOAA climate records for each metro — and the routing of your call. We state this plainly on purpose: you should know exactly who you are hiring before anyone picks up a wrench or a gauge.