Morrow County, OH Roof Snow Load - 20 psf
Morrow County, OH: your roof's ASCE 7 snow number, in plain English
Morrow County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. Flat and low-pitch roofs in Morrow County are actually governed by ASCE 7's §7.3.4 minimum of 20 psf, not the 14 psf the ground-load formula alone would produce.
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.
Already snow on the roof in Morrow County?
Morrow County in numbers
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#808 of 2,758
- Ohio rank#66 of 86
- Population35,927
- Annual snowfall, NOAA normal25.9 in.
- FIPS39117
Morrow County by the numbers
Nationally that's #808 out of 2,758 rated counties, the top 29%; within Ohio alone, Morrow County ranks #66 of 86. Morrow County's figure lands almost exactly on Ohio's own county-average of 20 psf.
Morrow County, FIPS 39117, is home to 35,927 people near 40.5253°N 82.7977°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.
Morrow County's snowfall, most winters
25.9 in. a year: that's Morrow County's NOAA 1991-2020 snowfall normal, measured at GALION WTR WKS, OH US (13.7 mi away). See the density guide.
Before you rely on Morrow County's number
Treat the Morrow 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. Details: the calculation guide.