SnowLoadCheck

Chariton County, MO Roof Snow Load - 20 psf

What ASCE 7 says about snow load in Chariton County

Moderate
20 psf

That's Chariton County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. ASCE 7's low-slope-roof minimum (§7.3.4) raises the governing figure to 20 psf - higher than the 14 psf the ground-load formula alone would give, and the code says use the larger one.

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. 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 Chariton County's roofs right now?

in. of

Chariton County in numbers

Where Chariton County's figure sits nationally

Out of 2,758 rated US counties, Chariton County sits at #1,162, the top 42% nationally - #72 of 115 within Missouri. That's 1.4 psf above Missouri's own county-average design load of 18.6 psf.

Near 39.518°N 92.9616°W, FIPS 29041: Chariton County counts 7,397 residents and a 20 psf map value, which the code's own factors turn into 20 psf.

How much it actually snows in Chariton County

Most winters bring Chariton County roughly 12.2 in. of snow - NOAA's normal at BRUNSWICK, MO US, 11.2 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Chariton 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 Chariton County's county-wide figure. Details: the calculation guide.