Los Angeles County, CA Roof Snow Load - 0 psf
What ASCE 7 says about snow load in Los Angeles County
That's Los Angeles 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.
Los Angeles County at a glance
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,471 of 2,758
- California rank#6 of 41
- Population9,757,179
- Annual snowfall, NOAA normal0 in.
- FIPS06037
Where Los Angeles County's figure sits nationally
Out of 2,758 rated US counties, Los Angeles County sits at #2,471, the top 90% nationally - #6 of 41 within California. That's 1.1 psf below California's own county-average design load of 1.1 psf.
Near 34.1964°N 118.2619°W, FIPS 06037: Los Angeles County counts 9,757,179 residents and a 0 psf map value, which the code's own factors turn into 0 psf.
How much it actually snows in Los Angeles County
Most winters bring Los Angeles County roughly 0 in. of snow - NOAA's normal at GLENDALE 2.4 WSW, CA US, 2.7 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Los Angeles 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 Los Angeles County's county-wide figure. Details: the calculation guide.