SnowLoadCheck

Crawford County, MO Roof Snow Load - 20 psf

What ASCE 7 says about snow load in Crawford County

Moderate
20 psf

That's Crawford County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. 14 psf is what the ground-load formula alone gives; Crawford 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.

Converted to something you can actually eyeball on a roof: about 44 in. of fresh powder, 16 in. once it settles and packs down, or just 4 in. if it's turned to ice. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.

Crawford County at a glance

Where Crawford County's figure sits nationally

Out of 2,758 rated US counties, Crawford County sits at #927, the top 34% nationally - #35 of 115 within Missouri. That's 1.4 psf above Missouri's own county-average design load of 18.6 psf.

Near 37.9666°N 91.3139°W, FIPS 29055: Crawford County counts 22,808 residents and a 20 psf map value, which the code's own factors turn into 20 psf.

How much it actually snows in Crawford County

Most winters bring Crawford County roughly 11.1 in. of snow - NOAA's normal at SALEM 1.8 NW, MO US, 24.9 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Crawford County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.

Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Crawford County's county-wide figure. See the methodology guide.