SnowLoadCheck

Parmer County, TX Roof Snow Load - 15 psf

Parmer County, TX: your roof's ASCE 7 snow number, in plain English

Moderate
15 psf

Parmer County's roofs are built to hold 15 psf of snow, the ASCE 7-22 figure a permit reviewer checks first. §7.3.4's low-slope minimum of 15 psf is what actually governs on a flat or low-pitch roof here - higher than the 10.5 psf the base ground-load formula gives.

In depth, not weight: that's roughly 33 inches of fresh, light snow, 12 inches of old, settled snow, or as little as 3 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 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.

Parmer County, TX: quick facts

Parmer County by the numbers

Nationally that's #1,555 out of 2,758 rated counties, the top 56%; within Texas alone, Parmer County ranks #16 of 254. That's 9.6 psf above Texas's own county-average design load of 5.4 psf.

Parmer County, FIPS 48369, is home to 9,669 people near 34.5322°N 102.7849°W. Its 15 psf ground snow load figure is the map value; 15 psf is what a roof is actually designed for.

Parmer County's snowfall, most winters

13.4 in. a year: that's Parmer County's NOAA 1991-2020 snowfall normal, measured at CLOVIS, NM US (24.7 mi away). See the density guide.

Before you rely on Parmer County's number

Treat the Parmer 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.