Osage County, KS Roof Snow Load - 20 psf
Osage County, KS: your roof's ASCE 7 snow number, in plain English
Osage County's roofs are built to hold 20 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. 14 psf is what the ground-load formula alone gives; Osage 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.
Osage County, KS: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#1,012 of 2,758
- Kansas rank#20 of 105
- Population15,737
- Annual snowfall, NOAA normal10.4 in.
- FIPS20139
Osage County by the numbers
Nationally that's #1,012 out of 2,758 rated counties, the top 37%; within Kansas alone, Osage County ranks #20 of 105. That's 1.8 psf above Kansas's own county-average design load of 18.2 psf.
Osage County, FIPS 20139, is home to 15,737 people near 38.6502°N 95.7083°W. Its 20 psf ground snow load figure is the map value; 20 psf is what a roof is actually designed for.
Osage County's snowfall, most winters
10.4 in. a year: that's Osage County's NOAA 1991-2020 snowfall normal, measured at OSAGE CITY, KS US (5.2 mi away). See the density guide.
Before you rely on Osage County's number
Treat the Osage 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. See the methodology guide.