Heating and cooling help across San Jacinto County, Texas — 0 communities and 5 ZIP codes, inside the Houston metro's coverage. TempReach USA connects you with an independent local HVAC technician; this page is the county-level homework.
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San Jacinto County covers 569 square miles in Texas. Its climate is read from the normals recorded at HOUSTON INTERCONT AP, TX US — 1,266 heating degree days against 3,288 cooling degree days — and its dominant pressure is a humid one. TempReach USA is a referral service, not an HVAC company: one call connects you with an independent local HVAC technician serving the county.
The station for this county's metro is HOUSTON INTERCONT AP, TX US, and its NOAA 1991-2020 normals are the source of every figure in this section. Precipitation averages 51.84 inches a year; the temperature record averages 70.5 degrees, built from 111.3 days at 90 or above and 10.1 nights at or below freezing; the workload totals 1,266 heating degree days and 3,288 cooling degree days. San Jacinto County is read through that record throughout this page.
Read the climate record and the county's pressure names itself. Precipitation of 51.84 inches a year at HOUSTON INTERCONT AP, TX US, layered over 3,288 cooling degree days, means San Jacinto County's heating and cooling is moisture management wearing a temperature costume. Homes across its 569 square miles ask their systems to dry the air as much as to cool it — and the systems that answer well are the ones sized, charged and drained with that double duty in mind.
Distance is the county fact the climate table leaves out. San Jacinto County's centroid lies northeast of the Houston metro's centre, roughly 52 miles from the centre it is measured against, and that distance is travelled on every call routed here — out through the metro's nearer counties and into this one's 5 ZIP codes. Local knowledge in a county like this is partly a map held in the head: which roads, which communities, which end of the county a call is coming from.
5 ZIP codes reach into San Jacinto County's 569 square miles, among them 77328, 77331, 77359, 77364 — an average of 113.8 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.
Position first: San Jacinto County lies northeast of the Houston metro's centre, roughly 52 miles from the metro's centre as the map measures it, with Austin County, Brazoria County, Chambers County among the counties around it. Neighbourhood at county scale matters to heating and cooling because systems do not respect the border — the same subdivisions' building decades continue across it, the same cold snaps and heat waves examine both sides in the same night — while each county's page, this one included, keeps the local figures distinct.
Extremes, not averages, fill San Jacinto County's emergency diary, and the record names them precisely: 111.3 days a year at 90 degrees or above, 10.1 nights at or below freezing. Between those figures sits the ordinary year — an average of 70.5 degrees, 51.84 inches of rain — in which systems mostly age quietly. The two ends are when ageing becomes failure, which is why the county's dominant humid pressure, the taller of its two peaks, sets the rhythm of its maintenance year as well.
Because the record names no separate places in San Jacinto County, this page reads the county the way its technicians meet it: by ground. 569 square miles of Texas, a centroid northeast of the Houston metro's centre, weather read from HOUSTON INTERCONT AP, TX US, and housing spread through the county rather than concentrated in listed communities. The systems in that housing face the same degree days as the rest of the Houston metro; what the county changes is the spacing between them, and spacing is a real part of how service works here.
Spread the metro's eras over San Jacinto County's own ground and the housing paragraph becomes a map: 569 square miles, 5 ZIP codes at 113.8 square miles per code, and a stock whose largest band was built since 2000 (40.0%), whose pre-1980 share runs to 32.6% and whose post-2000 share runs to 40.0%. The percentages are the metro's; the streets they land on are this county's, and a technician driving from one end of the county to the other drives through the bands in sequence.
Coverage, for San Jacinto County, is a set of overlapping maps. The land map is 569 square miles. The address map is 5 ZIP codes and 0 listed communities. The service map is the Houston metro, whose coverage the county sits inside — northeast of the Houston metro's centre, roughly 52 miles from its centre. The weather map is one station's record, kept at HOUSTON INTERCONT AP, TX US. A home in this county lives on all four maps at once, and its heating and cooling needs are set by the combination.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
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.
One call connects you with an independent local heating and cooling professional serving San Jacinto County and the Houston metro.
Call center hours: Mon-Fri 7:00 AM-10:00 PM ET | Sat 8:00 AM-10:00 PM ET | Sun 7:00 AM-9:00 PM ET