St. Charles Parish, LA Roof Snow Load - 0 psf
What ASCE 7 says about snow load in St. Charles Parish
That's St. Charles 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.
Already snow on the roof in St. Charles Parish?
St. Charles Parish in numbers
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,609 of 2,758
- Louisiana rank#47 of 64
- Population50,400
- Annual snowfall, NOAA normal0 in.
- FIPS22089
Where St. Charles Parish's figure sits nationally
Out of 2,758 rated US counties, St. Charles Parish sits at #2,609, the top 95% nationally - #47 of 64 within Louisiana. Louisiana counties average 2.4 psf; St. Charles Parish runs 2.4 psf lower than that.
Near 29.9057°N 90.3579°W, FIPS 22089: St. Charles Parish counts 50,400 residents and a 0 psf map value, which the code's own factors turn into 0 psf.
How much it actually snows in St. Charles Parish
Most winters bring St. Charles Parish roughly 0 in. of snow - NOAA's normal at METAIRIE, LA US, 14.1 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
St. Charles 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 St. Charles Parish's county-wide figure. (How this figure is calculated.)