Montgomery County, NC Roof Snow Load - 10 psf
What ASCE 7 says about snow load in Montgomery County
That's Montgomery 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 10 psf is what actually governs on a flat or low-pitch roof here - higher than the 7 psf the base ground-load formula gives.
Converted to something you can actually eyeball on a roof: about 22 in. of fresh powder, 8 in. once it settles and packs down, or just 2 in. if it's turned to ice. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Montgomery County in numbers
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,865 of 2,758
- North Carolina rank#83 of 100
- Population26,364
- Annual snowfall, NOAA normal3.3 in.
- FIPS37123
Where Montgomery County's figure sits nationally
Out of 2,758 rated US counties, Montgomery County sits at #1,865, the top 68% nationally - #83 of 100 within North Carolina. 12.9 psf is North Carolina's typical county figure - Montgomery County comes in 2.9 psf under it.
Near 35.3275°N 79.9108°W, FIPS 37123: Montgomery County counts 26,364 residents and a 10 psf map value, which the code's own factors turn into 10 psf.
How much it actually snows in Montgomery County
Most winters bring Montgomery County roughly 3.3 in. of snow - NOAA's normal at JACKSON SPRINGS 5 WNW, NC US, 16.5 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Montgomery 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 Montgomery County's county-wide figure. See the methodology guide.