Davie County, NC Roof Snow Load - 15 psf
What ASCE 7 says about snow load in Davie County
That's Davie County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from. The physics-based figure alone would be 10.5 psf, but ASCE 7's own low-slope minimum (§7.3.4) sets a floor of 15 psf for flat and low-pitch roofs here, which is the number that actually governs.
Converted to something you can actually eyeball on a roof: about 33 in. of fresh powder, 12 in. once it settles and packs down, or just 3 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.
Davie County in numbers
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,385 of 2,758
- North Carolina rank#35 of 100
- Population45,383
- Annual snowfall, NOAA normal4.5 in.
- FIPS37059
Where Davie County's figure sits nationally
Out of 2,758 rated US counties, Davie County sits at #1,385, the top 50% nationally - #35 of 100 within North Carolina. That's 2.1 psf above North Carolina's own county-average design load of 12.9 psf.
Near 35.9294°N 80.5426°W, FIPS 37059: Davie County counts 45,383 residents and a 15 psf map value, which the code's own factors turn into 15 psf.
How much it actually snows in Davie County
Most winters bring Davie County roughly 4.5 in. of snow - NOAA's normal at MOCKSVILLE 5SE, NC US, 6.5 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Davie 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 Davie County's county-wide figure. Details: the calculation guide.