Liberty County, MT Roof Snow Load - Case Study Area
Why doesn't Liberty County have a snow load number?
Liberty County sits in the mountain-west terrain where ASCE 7-22 §7.2 itself declines to give a contour figure - elevation changes too fast over short distances there for one number per county to mean anything. The code requires a site-specific study for a building here, not a look-up.
Liberty County, FIPS 30051, is home to 1,934 people - one of 386 US counties ASCE 7 itself routes around a map figure for.
Liberty County at a glance
- Population1,934
- Annual snowfall, NOAA normal48.8 in.
- FIPS30051
How much it actually snows in Liberty County
Most winters bring Liberty County roughly 48.8 in. of snow - NOAA's normal at GALATA 16 SW, MT US, 30.6 mi off. That station is far enough away (30.6 mi) that local snowfall - especially at a different elevation or near a lake - can run noticeably higher or lower than this figure. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Liberty 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 Liberty County's county-wide figure. See the methodology guide.