Clark County, SD Roof Snow Load - 35 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.
Converted to something you can actually eyeball on a roof: about 77 in. of fresh powder, 28 in. once it settles and packs down, or just 7 in. if it's turned to ice. This is a serious structural load - older homes built before modern snow-load provisions, or ones with low-slope or flat roof sections, are worth having checked.
Clark County, SD: quick facts
- Design roof snow load35 psf
- Ground snow load, ASCE 7 map50 psf
- National rank#206 of 2,758
- South Dakota rank#15 of 65
- Population3,974
- Annual snowfall, NOAA normal22 in.
- FIPS46025
Where Clark County's figure sits nationally
Out of 2,758 rated US counties, Clark County sits at #206, the top 7% nationally - #15 of 65 within South Dakota. South Dakota counties average 28.2 psf; Clark County runs 6.8 psf higher than that.
Near 44.8552°N 97.7249°W, FIPS 46025: Clark County counts 3,974 residents and a 50 psf map value, which the code's own factors turn into 35 psf.
How much it actually snows in Clark County
Most winters bring Clark County roughly 22 in. of snow - NOAA's normal at RAYMOND 3 NE, SD US, 11.5 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. Details: the calculation guide.