Jefferson County, TX Roof Snow Load - 0 psf
What ASCE 7 says about snow load in Jefferson County
That's Jefferson County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from.
Converted to something you can actually eyeball on a roof: about 0 in. of fresh powder, 0 in. once it settles and packs down, or just 0 in. if it's turned to ice. This county’s ground snow load maps to zero - snow load is not a driver of roof design here.
Jefferson County at a glance
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,540 of 2,758
- Texas rank#215 of 254
- Population253,948
- Annual snowfall, NOAA normal0 in.
- FIPS48245
Where Jefferson County's figure sits nationally
Out of 2,758 rated US counties, Jefferson County sits at #2,540, the top 92% nationally - #215 of 254 within Texas. Texas counties average 5.4 psf; Jefferson County runs 5.4 psf lower than that.
Near 29.854°N 94.1493°W, FIPS 48245: Jefferson County counts 253,948 residents and a 0 psf map value, which the code's own factors turn into 0 psf.
How much it actually snows in Jefferson County
Most winters bring Jefferson County roughly 0 in. of snow - NOAA's normal at PORT ARTHUR CITY, TX US, 11.2 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Jefferson County's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.
Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Jefferson County's county-wide figure. (How this figure is calculated.)