SnowLoadCheck

Clark County, IN Roof Snow Load - 15 psf

What ASCE 7 says about snow load in Clark County

Moderate
15 psf

That's Clark County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. The physics-based figure alone would be 10.5 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 15 psf for flat and low-pitch roofs here, which is the number that actually governs.

Converted to something you can actually eyeball on a roof: about 33 in. of fresh powder, 12 in. once it settles and packs down, or just 3 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.

Clark County in numbers

Where Clark County's figure sits nationally

Out of 2,758 rated US counties, Clark County sits at #1,335, the top 48% nationally - #78 of 89 within Indiana. Indiana counties average 19.3 psf; Clark County runs 4.3 psf lower than that.

Near 38.4762°N 85.7111°W, FIPS 18019: Clark County counts 127,479 residents and a 15 psf map value, which the code's own factors turn into 15 psf.

How much it actually snows in Clark County

Most winters bring Clark County roughly 4.3 in. of snow - NOAA's normal at LOUISVILLE MCALPINE, KY US, 14.4 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Clark 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 Clark County's county-wide figure. See the methodology guide.