SnowLoadCheck

Clark County, KS Roof Snow Load - 15 psf

Clark County, KS: your roof's ASCE 7 snow number, in plain English

Moderate
15 psf

Clark County's roofs are built to hold 15 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. The physics-based figure alone would be 10.5 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 15 psf for flat and low-pitch roofs here, which is the number that actually governs.

In depth, not weight: that's roughly 33 inches of fresh, light snow, 12 inches of old, settled snow, or as little as 3 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.

Clark County, KS: quick facts

Clark County by the numbers

Nationally that's #1,642 out of 2,758 rated counties, the top 60%; within Kansas alone, Clark County ranks #102 of 105. 18.2 psf is Kansas's typical county figure - Clark County comes in 3.2 psf under it.

Clark County, FIPS 20025, is home to 1,873 people near 37.2338°N 99.8139°W. Its 15 psf ground snow load figure is the map value; 15 psf is what a roof is actually designed for.

Clark County's snowfall, most winters

11.6 in. a year: that's Clark County's NOAA 1991-2020 snowfall normal, measured at ASHLAND, KS US (3.9 mi away). See the density guide.

Before you rely on Clark County's number

Treat the Clark 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.)