Cass County heating and cooling, county by county: 1,765 square miles of North Dakota lying west of the Fargo metro's centre, 25 ZIP codes, and a climate record read from FARGO HECTOR INTL AP, ND US. TempReach USA connects you with an independent local HVAC technician; this page sets out the county's own figures.
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The short version of this page: Cass County runs to 1,765 square miles, its weather is the record kept at FARGO HECTOR INTL AP, ND US — 8,806 heating degree days, 542 cooling degree days — and its systems live under a heating pressure. One call to TempReach USA, a referral service rather than an HVAC company, connects you with an independent local HVAC technician serving the county.
The climate figures on this page are the primary metro's NOAA 1991-2020 normals — climate normals recorded at FARGO HECTOR INTL AP, ND US, the station for the Fargo metro this county belongs to. An average year there brings 8,806 heating degree days, 542 cooling degree days, 23.95 inches of precipitation, 11.2 days at 90 degrees or above and 172.4 nights at or below freezing, around an average temperature of 42.2 degrees.
Divide Cass County's cold by its coverage and the heating diary sharpens: 25 ZIP codes over 1,765 square miles, 70.6 square miles per code on average, the codes running from 58002 to 58105. A furnace failure in the code nearest the metro reads differently from one at the county's far edge — not in the fault, which is the same worn igniter or tired blower, but in everything around it: the drive, the house's decade, the odds the system has already been replaced once. The cold itself, 8,806 heating degree days of it, is shared; the ground it is answered on is not.
One more county fact belongs in the record: position. Cass County sits at 46.927003, -97.252375 on the map — the centroid of a county whose communities spread across 1,765 square miles of North Dakota. 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.
25 ZIP codes reach into Cass County's 1,765 square miles, among them 58002, 58004, 58005, 58006 — an average of 70.6 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.
There are 1 counties on Cass County's neighbour list, Clay County among them, and the list is a reminder that a county page is a slice of a continuous map. The slice is worth keeping separate: this county's land area, its ZIP codes and its communities are its own, and its heating and cooling pressure — the heating profile described above — lands on its own housing. But the slice only makes full sense beside its neighbours, whose pages are linked from this one for exactly that reason.
There is a geography to Cass County's seasons that the totals flatten. The county lies west of the Fargo metro's centre, roughly 18 miles from the centre the record is measured against, and its 1,765 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 11.2 hot days and 172.4 freezing nights through different housing, fitted in different decades. One station record, one county, two ends of every season.
Communities across Cass County include Fargo, West Fargo, Horace and Casselton — 8 listed places in all, spread over the county's 1,765 square miles in North Dakota. Each community's housing was built in its own decades, so the heating and cooling diary reads differently from one name on that list to the next: older systems and original ductwork in the long-settled places, matched fleets ageing together in the subdivisions, and additions and conversions in the communities still growing at the county's edges.
Census figures give Cass County's heating and cooling its proportions. The metro it belongs to counts 114,738 housing units across 107,607 households, 55.5% of them owner-occupied, and the era mix runs 17.9% before 1960, 20.8% from 1960 to 1979, 23.1% from 1980 to 1999 and 38.2% since 2000. A county inside that metro inherits the mix in its own proportions — which is why two homes on the same Cass County street, built forty years apart, can need entirely different conversations from the same technician.
A reader who only had Cass County's identifying figures would already know its shape: a county of 1,765 square miles in North Dakota, 25 ZIP codes, 8 communities on the record, sitting west of the Fargo 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 129,064
Population 39,325
Population 3,964
Population 2,640
Population 1,243
Population 927
Population 888
Population 775
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 Cass County and the Fargo 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