Jones County, MS Roof Snow Load - 5 psf
Jones County, MS: your roof's ASCE 7 snow number, in plain English
Jones County's roofs are built to hold 5 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. 3.5 psf is what the ground-load formula alone gives; Jones County's 5 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
In depth, not weight: that's roughly 11 inches of fresh, light snow, 4 inches of old, settled snow, or as little as 1 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. This is a modest add-on to standard roof loading - ordinary residential construction carries it without extra bracing.
Jones County, MS: quick facts
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,165 of 2,758
- Mississippi rank#41 of 82
- Population65,837
- Annual snowfall, NOAA normal0 in.
- FIPS28067
Jones County by the numbers
Nationally that's #2,165 out of 2,758 rated counties, the top 78%; within Mississippi alone, Jones County ranks #41 of 82. 6.5 psf is Mississippi's typical county figure - Jones County comes in 1.5 psf under it.
Jones County, FIPS 28067, is home to 65,837 people near 31.6166°N 89.1685°W. Its 5 psf ground snow load figure is the map value; 5 psf is what a roof is actually designed for.
Jones County's snowfall, most winters
0 in. a year: that's Jones County's NOAA 1991-2020 snowfall normal, measured at LAUREL, MS US (4.9 mi away). See the density guide.
Before you rely on Jones County's number
Treat the Jones County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)