SnowLoadCheck

Doniphan County, KS Roof Snow Load - 20 psf

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

Moderate
20 psf

Doniphan 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. 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.

Snow on Doniphan County's roofs right now?

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Doniphan County, KS: quick facts

Doniphan County by the numbers

Nationally that's #1,159 out of 2,758 rated counties, the top 42%; within Kansas alone, Doniphan County ranks #35 of 105. Kansas counties average 18.2 psf; Doniphan County runs 1.8 psf higher than that.

Doniphan County, FIPS 20043, is home to 7,575 people near 39.7885°N 95.1472°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.

Doniphan County's snowfall, most winters

21.1 in. a year: that's Doniphan County's NOAA 1991-2020 snowfall normal, measured at TROY 3N, KS US (4.2 mi away). See the density guide.

Before you rely on Doniphan County's number

Treat the Doniphan 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.)