Jackson Parish, LA Roof Snow Load - 5 psf
Jackson Parish, LA: your roof's ASCE 7 snow number, in plain English
Jackson Parish's roofs are built to hold 5 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. Flat and low-pitch roofs in Jackson Parish are actually governed by ASCE 7's §7.3.4 minimum of 5 psf, not the 3.5 psf the ground-load formula alone would produce.
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.
Jackson Parish in numbers
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,337 of 2,758
- Louisiana rank#20 of 64
- Population14,797
- Annual snowfall, NOAA normal0.2 in.
- FIPS22049
Jackson Parish by the numbers
Nationally that's #2,337 out of 2,758 rated counties, the top 85%; within Louisiana alone, Jackson Parish ranks #20 of 64. That's 2.6 psf above Louisiana's own county-average design load of 2.4 psf.
Jackson Parish, FIPS 22049, is home to 14,797 people near 32.3043°N 92.5617°W. Its 5 psf ground snow load figure is the map value; 5 psf is what a roof is actually designed for.
Jackson Parish's snowfall, most winters
0.2 in. a year: that's Jackson Parish's NOAA 1991-2020 snowfall normal, measured at JONESBORO 4 ENE, LA US (6.4 mi away). See the density guide.
Before you rely on Jackson Parish's number
Treat the Jackson Parish 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.)