Perry County, KY Roof Snow Load - 20 psf
What ASCE 7 says about snow load in Perry County
That's Perry County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. §7.3.4's low-slope minimum of 20 psf is what actually governs on a flat or low-pitch roof here - higher than the 14 psf the base ground-load formula gives.
Converted to something you can actually eyeball on a roof: about 44 in. of fresh powder, 16 in. once it settles and packs down, or just 4 in. if it's turned to ice. Modern-code homes carry a load like this without issue; an older addition, a carport, or any flat-roofed section is where it is worth checking first.
Perry County, KY: quick facts
- Design roof snow load20 psf
- Ground snow load, ASCE 7 map20 psf
- National rank#894 of 2,758
- Kentucky rank#8 of 120
- Population26,739
- Annual snowfall, NOAA normal8.8 in.
- FIPS21193
Where Perry County's figure sits nationally
Out of 2,758 rated US counties, Perry County sits at #894, the top 32% nationally - #8 of 120 within Kentucky. Kentucky counties average 15.7 psf; Perry County runs 4.3 psf higher than that.
Near 37.2413°N 83.2178°W, FIPS 21193: Perry County counts 26,739 residents and a 20 psf map value, which the code's own factors turn into 20 psf.
How much it actually snows in Perry County
Most winters bring Perry County roughly 8.8 in. of snow - NOAA's normal at HAZARD WTR WKS, KY US, 2 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Perry 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 Perry County's county-wide figure. (How this figure is calculated.)