Guadalupe County, NM Roof Snow Load - 10 psf
Guadalupe County, NM roof snow load, translated
A typical heated home in Guadalupe County is designed to carry 10 pounds per square foot of snow on its roof, per ASCE 7-22. 7 psf is what the ground-load formula alone gives; Guadalupe County's 10 psf low-slope minimum (§7.3.4) beats it, so that figure is the one that governs on flat and low-pitch roofs.
On a roof that means 22 in. of fresh snow, 8 in. once it packs down, or 2 in. of solid ice - three very different piles for the same load. Standard residential construction handles a load this size without extra bracing; it is a modest addition on top of ordinary roof loading.
Guadalupe County, NM: quick facts
- Design roof snow load10 psf
- Ground snow load, ASCE 7 map10 psf
- National rank#2,050 of 2,758
- New Mexico rank#8 of 27
- Population4,385
- Annual snowfall, NOAA normal27.2 in.
- FIPS35019
Where Guadalupe County ranks
#8 of 27 New Mexico counties by design load, top 74% of 2,758 nationally - that's Guadalupe County's spot. 6.9 psf is New Mexico's typical county figure - Guadalupe County beats it by 3.1 psf.
FIPS 35019, population 4,385, centered near 34.8697°N 104.7849°W. ASCE 7's underlying ground snow load here is 10 psf before the code's exposure and importance factors bring it to the 10 psf design figure above.
Guadalupe County: average annual snowfall
Guadalupe County sees about 27.2 in. of snow most winters, per the DILIA, NM US station's 1991-2020 NOAA normal. Worth noting: the nearest station reporting snowfall normals sits 26.6 mi from Guadalupe County's center, so treat this as a regional figure rather than an exact one. See the density guide.
Read this before you use Guadalupe County's figure
The figure above assumes the case ASCE 7-22 treats as typical: a heated, ordinary-occupancy home on a partially exposed site. Change any of those - exposure, heating, roof pitch, occupancy category - and the real design number moves.
A building permit needs the number at your exact address, not the county average - the free ASCE 7 Hazard Tool returns that from your coordinates in about a minute and produces a PDF a plan reviewer will accept. See the methodology guide.