SnowLoadCheck

Caldwell County, MO Roof Snow Load - 20 psf

What ASCE 7 says about snow load in Caldwell County

Moderate
20 psf

That's Caldwell 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. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.

Snow on Caldwell County's roofs right now?

in. of

Caldwell County in numbers

Where Caldwell County's figure sits nationally

Out of 2,758 rated US counties, Caldwell County sits at #1,125, the top 41% nationally - #65 of 115 within Missouri. That's 1.4 psf above Missouri's own county-average design load of 18.6 psf.

Near 39.659°N 93.9792°W, FIPS 29025: Caldwell County counts 9,000 residents and a 20 psf map value, which the code's own factors turn into 20 psf.

How much it actually snows in Caldwell County

Most winters bring Caldwell County roughly 14.1 in. of snow - NOAA's normal at POLO, MO US, 8.3 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Caldwell 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 Caldwell County's county-wide figure. (How this figure is calculated.)