Guernsey County, OH Roof Snow Load - 20 psf
Guernsey County, OH: your roof's ASCE 7 snow number, in plain English
Guernsey County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. 17.5 psf is what the ground-load formula alone gives; Guernsey County's 20 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
In depth, not weight: that's roughly 44 inches of fresh, light snow, 16 inches of old, settled snow, or as little as 4 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.
Got real snow on a Guernsey County roof right now?
Guernsey County, OH: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map25 psf
- National rank#794 of 2,758
- Ohio rank#63 of 86
- Population38,219
- Annual snowfall, NOAA normal17.4 in.
- FIPS39059
Guernsey County by the numbers
Nationally that's #794 out of 2,758 rated counties, the top 29%; within Ohio alone, Guernsey County ranks #63 of 86. Guernsey County's figure lands almost exactly on Ohio's own county-average of 20 psf.
Guernsey County, FIPS 39059, is home to 38,219 people near 40.0567°N 81.4979°W. Its 25 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.
Guernsey County's snowfall, most winters
17.4 in. a year: that's Guernsey County's NOAA 1991-2020 snowfall normal, measured at CAMBRIDGE, OH US (5.3 mi away). See the density guide.
Before you rely on Guernsey County's number
Treat the Guernsey County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)