SnowLoadCheck

Greene County, OH Roof Snow Load - 20 psf

Greene County, OH: your roof's ASCE 7 snow number, in plain English

Moderate
20 psf

Greene County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 14 psf the base ground-load formula gives.

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. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.

Greene County at a glance

Greene County by the numbers

Nationally that's #601 out of 2,758 rated counties, the top 22%; within Ohio alone, Greene County ranks #17 of 86. Greene County's figure lands almost exactly on Ohio's own county-average of 20 psf.

Greene County, FIPS 39057, is home to 172,347 people near 39.6875°N 83.8949°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.

Greene County's snowfall, most winters

20.3 in. a year: that's Greene County's NOAA 1991-2020 snowfall normal, measured at XENIA 6 SSE, OH US (5.8 mi away). See the density guide.

Before you rely on Greene County's number

Treat the Greene 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.)