St. Bernard Parish heating and cooling, county by county: 378 square miles of Louisiana lying east of the New Orleans metro's centre, 5 ZIP codes, and a climate record read from NEW ORLEANS ALVIN CALLENDER FL, LA US. TempReach USA connects you with an independent local HVAC technician; this page sets out the county's own figures.
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St. Bernard Parish covers 378 square miles in Louisiana. Its climate is read from the normals recorded at NEW ORLEANS ALVIN CALLENDER FL, LA US — 1,425 heating degree days against 2,615 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 NEW ORLEANS ALVIN CALLENDER FL, LA US, and its NOAA 1991-2020 normals are the source of every figure in this section. Precipitation averages 63.8 inches a year; the temperature record averages 68.2 degrees, built from 64.4 days at 90 or above and 10.8 nights at or below freezing; the workload totals 1,425 heating degree days and 2,615 cooling degree days. St. Bernard Parish is read through that record throughout this page.
The moisture has an address pattern in St. Bernard Parish too. Its 5 ZIP codes spread 378 square miles of housing across ground that sits east of the New Orleans metro's centre, and the 63.8 inches of yearly rain recorded at NEW ORLEANS ALVIN CALLENDER FL, LA US do not fall on that ground evenly in their effects: the older districts drain and dry differently from the newer subdivisions, and crawl spaces, slabs and attics each hand the indoor air a different share of the outdoor wet. The systems answer with the same tools everywhere — airflow, drainage, honest sizing — weighted street by street.
One more county fact belongs in the record: position. St. Bernard Parish sits at 29.91811, -89.263494 on the map — the centroid of a county whose communities spread across 378 square miles of Louisiana. Position decides which end of the metro's weather arrives first and which of its service patterns a household here meets most; the rest of this page is that position, read through the climate record and the metro's data.
A ZIP code in St. Bernard Parish is a small climate-and-housing district of its own. The county's 5 codes — 70032, 70043, 70075, 70085 among them — all read the same normals from NEW ORLEANS ALVIN CALLENDER FL, LA US, yet the systems inside them were installed in different decades, serve different house sizes, and fail in different orders. That is why this page prints the whole list rather than a summary: the codes are the finest division of the county the data supports, and they are the division the work itself follows.
Read the map around St. Bernard Parish and a working region appears: Jefferson Parish, Orleans Parish, Plaquemines Parish, St. Charles Parish are the neighbouring names at the head of its list of 6, and together these counties form the ground a local technician actually covers. The county line decides which page describes a home; it does not decide the weather the home's system faces, the decade its street was built in, or the season its diary fills. Those are regional — and the region, on this site, is a set of county pages that link to one another, as the cards below do.
Two numbers organise St. Bernard Parish's heating and cooling year: 1,425 and 2,615, the heating and cooling degree days in the normals at NEW ORLEANS ALVIN CALLENDER FL, LA US. Whichever runs larger decides the county's dominant pressure — here, a humid one — and with it the season a household should prepare for first. The supporting figures fill in the texture: 68.2 degrees as the year's average temperature, 64.4 hot days, 10.8 freezing nights, 63.8 inches of precipitation. Every paragraph on this page is, in the end, a reading of those six numbers on this county's ground.
St. Bernard Parish's named places — Chalmette — anchor a county that is mostly ground between names: 378 square miles, 5 ZIP codes, and housing that follows the roads more than the towns. The wider metro it belongs to is anchored by New Orleans (376,035 residents) and Metairie, but this county's own diary is quieter and more spread out: individual systems in individual houses, ageing on the schedule of the decade each house was built, from the named communities outward.
The growth figures deserve their own reading in St. Bernard Parish. 15.3% of the New Orleans metro's homes were built since 2000 — the largest or near-largest band in many of its counties — and those homes are now old enough that their first systems are reaching replacement age together, subdivision by subdivision. Set against them, the 64.7% of the metro's stock that predates 1980 is deep into its second and third systems. One county, two replacement waves running at once, and a maintenance diary that has to serve both.
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 St. Bernard Parish's case, across 378 square miles that hold 1 listed communities and 5 ZIP codes, east of the New Orleans 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.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 22,447
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 St. Bernard Parish and the New Orleans 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