Jeff Davis County, TX Roof Snow Load - 0 psf
Jeff Davis County, TX roof snow load, translated
A typical heated home in Jeff Davis County is designed to carry 0 pounds per square foot of snow on its roof, per ASCE 7-22.
On a roof that means 0 in. of fresh snow, 0 in. once it packs down, or 0 in. of solid ice - three very different piles for the same load. Snow load is not a factor in roof design here at all; the ground snow load figure maps to zero.
Jeff Davis County in numbers
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,753 of 2,758
- Texas rank#250 of 254
- Population1,778
- Annual snowfall, NOAA normal4 in.
- FIPS48243
Where Jeff Davis County ranks
#250 of 254 Texas counties by design load, top 100% of 2,758 nationally - that's Jeff Davis County's spot. Texas counties average 5.4 psf; Jeff Davis County runs 5.4 psf lower than that.
FIPS 48243, population 1,778, centered near 30.6254°N 104.1919°W. ASCE 7's underlying ground snow load here is 0 psf before the code's exposure and importance factors bring it to the 0 psf design figure above.
Jeff Davis County: average annual snowfall
Jeff Davis County sees about 4 in. of snow most winters, per the VALENTINE 10 WSW, TX US station's 1991-2020 NOAA normal. That station is far enough away (27.5 mi) that local snowfall - especially at a different elevation or near a lake - can run noticeably higher or lower than this figure. See the density guide.
Read this before you use Jeff Davis 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. Details: the calculation guide.