Duchesne County, UT Roof Snow Load - 24.5 psf
What ASCE 7 says about snow load in Duchesne County
That's Duchesne 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 53.9 in. of fresh powder, 19.6 in. once it settles and packs down, or just 4.9 in. if it's turned to ice. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Duchesne County, UT: quick facts
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#339 of 2,758
- Utah rank#1 of 10
- Population20,803
- Annual snowfall, NOAA normal30.6 in.
- FIPS49013
Where Duchesne County's figure sits nationally
Out of 2,758 rated US counties, Duchesne County sits at #339, the top 12% nationally - #1 of 10 within Utah. Utah counties average 16.6 psf; Duchesne County runs 7.9 psf higher than that.
Near 40.2894°N 110.4296°W, FIPS 49013: Duchesne County counts 20,803 residents and a 35 psf map value, which the code's own factors turn into 24.5 psf.
How much it actually snows in Duchesne County
Most winters bring Duchesne County roughly 30.6 in. of snow - NOAA's normal at NEOLA, UT US, 21.8 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Duchesne 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 Duchesne County's county-wide figure. (How this figure is calculated.)