Warren County, NJ Roof Snow Load - Case Study Area
What "Case Study" means for Warren County
ASCE 7's own snow load map has no single figure for Warren 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 34041, population 112,031. 386 US counties get this same case-study treatment; Warren County is one of them.
Warren County in numbers
- Population112,031
- Annual snowfall, NOAA normal23.3 in.
- FIPS34041
Warren County: average annual snowfall
Warren County sees about 23.3 in. of snow most winters, per the BELVIDERE BRG, NJ US station's 1991-2020 NOAA normal. See the density guide.
Read this before you use Warren County's figure
The figure above assumes the case ASCE 7-22 treats as typical: a heated, ordinary-occupancy home on a partially exposed site. Change any of those - exposure, heating, roof pitch, occupancy category - and the real design number moves.
A building permit needs the number at your exact address, not the county average - the free ASCE 7 Hazard Tool returns that from your coordinates in about a minute and produces a PDF a plan reviewer will accept. Details: the calculation guide.