Christian County, MO Roof Snow Load - 15 psf
Christian County, MO: your roof's ASCE 7 snow number, in plain English
Christian County's roofs are built to hold 15 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. 10.5 psf is what the ground-load formula alone gives; Christian County's 15 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 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. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.
Christian County in numbers
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,344 of 2,758
- Missouri rank#87 of 115
- Population96,045
- Annual snowfall, NOAA normal6.8 in.
- FIPS29043
Christian County by the numbers
Nationally that's #1,344 out of 2,758 rated counties, the top 49%; within Missouri alone, Christian County ranks #87 of 115. That's 3.6 psf below Missouri's own county-average design load of 18.6 psf.
Christian County, FIPS 29043, is home to 96,045 people near 36.9697°N 93.1876°W. Its 15 psf ground snow load figure is the map value; 15 psf is what a roof is actually designed for.
Christian County's snowfall, most winters
6.8 in. a year: that's Christian County's NOAA 1991-2020 snowfall normal, measured at OZARK, MO US (4.3 mi away). See the density guide.
Before you rely on Christian County's number
Treat the Christian 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.)