Jackson County, OK Roof Snow Load - 10 psf
Jackson County, OK: your roof's ASCE 7 snow number, in plain English
Jackson County's roofs are built to hold 10 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §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.
In depth, not weight: that's roughly 22 inches of fresh, light snow, 8 inches of old, settled snow, or as little as 2 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 County, OK: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#1,883 of 2,758
- Oklahoma rank#49 of 77
- Population24,541
- Annual snowfall, NOAA normal4.1 in.
- FIPS40065
Jackson County by the numbers
Nationally that's #1,883 out of 2,758 rated counties, the top 68%; within Oklahoma alone, Jackson County ranks #49 of 77. 11 psf is Oklahoma's typical county figure - Jackson County comes in 1 psf under it.
Jackson County, FIPS 40065, is home to 24,541 people near 34.594°N 99.4122°W. Its 10 psf ground snow load figure is the map value; 10 psf is what a roof is actually designed for.
Jackson County's snowfall, most winters
4.1 in. a year: that's Jackson County's NOAA 1991-2020 snowfall normal, measured at ALTUS IRIG RSCH STN, OK US (4.4 mi away). See the density guide.
Before you rely on Jackson County's number
Treat the Jackson 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. See the methodology guide.