Clark County, IN Roof Snow Load - 15 psf
What ASCE 7 says about snow load in Clark County
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.
Snow on Clark County's roofs right now?
Clark County in numbers
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,335 of 2,758
- Indiana rank#78 of 89
- Population127,479
- Annual snowfall, NOAA normal4.3 in.
- FIPS18019
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.