Sioux County, ND Roof Snow Load - 35 psf
What ASCE 7 says about snow load in Sioux County
That's Sioux 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. A load this size is a serious structural matter; pre-modern-code homes and low-slope or flat-roofed sections are the ones most worth an inspection.
Sioux County at a glance
- Design roof snow load35 psf
- Ground snow load, ASCE 7 map50 psf
- National rank#208 of 2,758
- North Dakota rank#12 of 49
- Population3,713
- Annual snowfall, NOAA normal46.9 in.
- FIPS38085
Where Sioux County's figure sits nationally
Out of 2,758 rated US counties, Sioux County sits at #208, the top 8% nationally - #12 of 49 within North Dakota. That's 5.6 psf above North Dakota's own county-average design load of 29.4 psf.
Near 46.1106°N 101.0613°W, FIPS 38085: Sioux County counts 3,713 residents and a 50 psf map value, which the code's own factors turn into 35 psf.
How much it actually snows in Sioux County
Most winters bring Sioux County roughly 46.9 in. of snow - NOAA's normal at SHIELDS, ND US, 9.1 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Sioux 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 Sioux County's county-wide figure. See the methodology guide.