Pearl River County, MS Roof Snow Load - 5 psf
Pearl River County, MS: your roof's ASCE 7 snow number, in plain English
Pearl River County'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 Pearl River County 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. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Pearl River County at a glance
- Design roof snow load5 psf
- Ground snow load, ASCE 7 map5 psf
- National rank#2,177 of 2,758
- Mississippi rank#42 of 82
- Population59,030
- Annual snowfall, NOAA normal0.3 in.
- FIPS28109
Pearl River County by the numbers
Nationally that's #2,177 out of 2,758 rated counties, the top 79%; within Mississippi alone, Pearl River County ranks #42 of 82. That's 1.5 psf below Mississippi's own county-average design load of 6.5 psf.
Pearl River County, FIPS 28109, is home to 59,030 people near 30.7748°N 89.5869°W. Its 5 psf ground snow load figure is the map value; 5 psf is what a roof is actually designed for.
Pearl River County's snowfall, most winters
0.3 in. a year: that's Pearl River County's NOAA 1991-2020 snowfall normal, measured at POPLARVILLE EXP STN, MS US (5.2 mi away). See the density guide.
Before you rely on Pearl River County's number
Treat the Pearl River 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. Details: the calculation guide.