Washington Parish, LA Roof Snow Load - 0 psf
What ASCE 7 says about snow load in Washington Parish
That's Washington Parish'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.
Snow on Washington Parish's roofs right now?
Washington Parish in numbers
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,620 of 2,758
- Louisiana rank#49 of 64
- Population45,090
- Annual snowfall, NOAA normal0.1 in.
- FIPS22117
Where Washington Parish's figure sits nationally
Out of 2,758 rated US counties, Washington Parish sits at #2,620, the top 95% nationally - #49 of 64 within Louisiana. Louisiana counties average 2.4 psf; Washington Parish runs 2.4 psf lower than that.
Near 30.8521°N 90.0463°W, FIPS 22117: Washington Parish counts 45,090 residents and a 0 psf map value, which the code's own factors turn into 0 psf.
How much it actually snows in Washington Parish
Most winters bring Washington Parish roughly 0.1 in. of snow - NOAA's normal at FRANKLINTON 5 SW, LA US, 10.4 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Washington Parish'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 Washington Parish's county-wide figure. See the methodology guide.