Heating and cooling help across Yolo County, California — 2 communities and 18 ZIP codes, inside the Sacramento metro's coverage. TempReach USA connects you with an independent local HVAC technician; this page is the county-level homework.
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Yolo County covers 1,013 square miles in California. Its climate is read from the normals recorded at SACRAMENTO 5 ESE, CA US — 2,138 heating degree days against 1,576 cooling degree days — and its dominant pressure is a heating one. TempReach USA is a referral service, not an HVAC company: one call connects you with an independent local HVAC technician serving the county.
Every climate number on this page comes from one record: the NOAA 1991-2020 normals at SACRAMENTO 5 ESE, CA US, the primary metro's station, read here for Yolo County. The record's shape is 2,138 heating degree days set against 1,576 cooling degree days, 19.2 inches of precipitation in an average year, 89.9 days reaching 90 degrees or above and 4.0 nights at or below freezing, with an average temperature of 63.4 degrees across the year.
The neighbours tell part of Yolo County's heating story: El Dorado County, Placer County, Sacramento County are among the counties around it, all reading the same record at SACRAMENTO 5 ESE, CA US, all filling their diaries in the same cold weeks. What separates this county's share is its own ground — 1,013 square miles lying west of the Sacramento metro's centre, roughly 42 miles from the metro's centre — and its own housing, fitted across the decades its communities were built. The season is regional; the failures are local, one system at a time, at addresses only this county has.
The county's neighbours frame it as well: El Dorado County, Placer County, Sacramento County are among the 3 counties on its neighbour list, and together they form the working ground around Yolo County's own 1,013 square miles. A system near a shared border lives in both counties' weather at once, whichever page describes its home — the pages divide the map so the record can be read county by county, and the links between them keep the whole in view.
The ZIP list is the county's working map. Yolo County carries 18 codes, running from 95605 through 95653 in the middle of the list to 95937 at its end, and every code on it is a small housing census of its own — the building decades, the system generations, the duct materials of its streets. Heating and cooling work routed by those codes meets the county in slices, and the slices differ more than the county's shared climate record would suggest.
Neighbouring counties are the honest context for Yolo County's figures. Its 1,013 square miles sit inside a wider spread of county ground — El Dorado County, Placer County, Sacramento County are among the 3 neighbours on its record — and its position west of the Sacramento metro's centre places it on its own side of that spread. A system near the county's edge may be closer to a neighbouring county's centre than to its own; the pages are organised by county because the data is, and the links between them carry the rest of the picture.
Two numbers organise Yolo County's heating and cooling year: 2,138 and 1,576, the heating and cooling degree days in the normals at SACRAMENTO 5 ESE, CA US. Whichever runs larger decides the county's dominant pressure — here, a heating one — and with it the season a household should prepare for first. The supporting figures fill in the texture: 63.4 degrees as the year's average temperature, 89.9 hot days, 4.0 freezing nights, 19.2 inches of precipitation. Every paragraph on this page is, in the end, a reading of those six numbers on this county's ground.
The county record names Davis, Woodland among Yolo 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 1,013 square miles of California. 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.
Spread the metro's eras over Yolo County's own ground and the housing paragraph becomes a map: 1,013 square miles, 18 ZIP codes at 56.3 square miles per code, and a stock whose largest band was built between 1980 and 1999 (30.3%), whose pre-1980 share runs to 44.6% and whose post-2000 share runs to 25.1%. 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.
A reader who only had Yolo County's identifying figures would already know its shape: a county of 1,013 square miles in California, 18 ZIP codes, 2 communities on the record, sitting west of the Sacramento metro's centre. What the figures cannot say alone is how the ground feels to work — the drives between calls, the mix of decades in the housing, the season that runs taller — and that is what the rest of this page is for, section by section.
City pages carry the metro-wide homework — housing eras, the problem ranking, services in depth. This county sits inside their coverage.
Population 66,801
Population 61,256
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 Yolo County and the Sacramento 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