Sullivan County, NY Roof Snow Load - Case Study Area
What "Case Study" means for Sullivan County
ASCE 7's own snow load map has no single figure for Sullivan County: the terrain is complex enough that the code (§7.2) requires an elevation-specific study rather than a county-wide value. That is the map being accurate, not a data gap.
FIPS 36105, population 80,450. 386 US counties get this same case-study treatment; Sullivan County is one of them.
Sullivan County at a glance
- Population80,450
- Annual snowfall, NOAA normal69.9 in.
- FIPS36105
Sullivan County's snowfall, most winters
69.9 in. a year: that's Sullivan County's NOAA 1991-2020 snowfall normal, measured at LIBERTY 1 NE, NY US (5.9 mi away). See the density guide.
Before you rely on Sullivan County's number
Treat the Sullivan County figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.
For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. Details: the calculation guide.