One county, read on its own ground: Multnomah County, Oregon — 2 communities, 34 ZIP codes, 6 neighbouring counties, inside the Portland metro. TempReach USA connects you with an independent local HVAC technician serving the county, and this page is the homework behind the connection.
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In brief: 431 square miles of Oregon, a climate read from VANCOUVER PEARSON AP, WA US's normals, and a heating pressure as the county's dominant one — 4,400 heating degree days set against 400 cooling degree days in an average year. TempReach USA does not do the work itself; it is a referral service, and one call connects you with an independent local HVAC technician serving Multnomah County.
The climate figures on this page are the primary metro's NOAA 1991-2020 normals — climate normals recorded at VANCOUVER PEARSON AP, WA US, the station for the Portland metro this county belongs to. An average year there brings 4,400 heating degree days, 400 cooling degree days, 37.47 inches of precipitation, 14.6 days at 90 degrees or above and 44.8 nights at or below freezing, around an average temperature of 54.0 degrees.
Heating writes this county's HVAC calendar. With 4,400 heating degree days against 400 cooling degree days in the normals recorded at VANCOUVER PEARSON AP, WA US, the systems across Multnomah County earn their keep in the cold half of the year: furnaces and heat pumps cycling through 44.8 nights at or below freezing, when a breakdown stops being a comfort problem and becomes a household one. The pressure shows up as midwinter failures on the oldest equipment first, and a maintenance calendar that has to be kept in autumn — because by the time the cold arrives, the county's systems are already on stage.
One more county fact belongs in the record: position. Multnomah County sits at 45.547711, -122.417363 on the map — the centroid of a county whose communities spread across 431 square miles of Oregon. 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 Multnomah County is a small climate-and-housing district of its own. The county's 34 codes — 97019, 97024, 97030, 97060 among them — all read the same normals from VANCOUVER PEARSON AP, WA 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.
The counties around Multnomah County include Skamania County, Washington County, Yamhill County, and the whole group shares the Portland metro's climate record from VANCOUVER PEARSON AP, WA US. What the neighbours do not share is this county's ground: 431 square miles, 34 ZIP codes, a centroid east of the Portland 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.
The precipitation figure earns its place in Multnomah County's record: 37.47 inches a year at VANCOUVER PEARSON AP, WA US, falling through both the cooling months and the heating ones. Rain loads condensate systems in summer, tests outdoor units and venting in winter, and keeps the ground around the county's 34 ZIP codes cycling between wet and dry in a way that shows up in crawl spaces and condensate lines. Set beside 14.6 hot days and 44.8 freezing nights, it completes the picture of what the county's equipment actually lives in.
The county record names Portland, Gresham among Multnomah County's communities — a short list, and an honest one: much of the county's housing sits outside its named places, along the roads and in the settlements between them, across 431 square miles of Oregon. The heating and cooling diary follows that pattern. Calls cluster where the named communities cluster, then spread out along the county's ZIP codes, and the systems at the far ends of those drives were fitted in the decades their houses were built, community or no community.
The county's position frames its housing as well. Multnomah County lies east of the Portland metro's centre, roughly 12 miles out, and the metro's era mix — 27.2% built between 1980 and 1999, 26.5% since 2000, median year 1983 — reads at this distance with a county accent: the shares nearer the centre and the shares at the edge were platted in different decades of the metro's growth. Which band a given Multnomah County street belongs to is a local fact; that the bands exist, in these proportions, is the Census record this page is built on.
One way to hold Multnomah County in mind is as the local layer of a wider dataset. Above it sits the Portland metro, with its Census housing profile and its NOAA station at VANCOUVER PEARSON AP, WA US. At this level sit the county's own numbers — 431 square miles, 6 neighbouring counties, 34 ZIP codes, 2 listed places — and below it, not published anywhere, sit the individual homes whose systems all of it describes. This page works at the middle level, where the data is still local enough to act on.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 642,715
Population 112,818
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 Multnomah County and the Portland 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