Northumberland County, PA Roof Snow Load - Case Study Area
Northumberland County, PA: no map figure, on purpose
Northumberland 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.
Northumberland County, FIPS 42097, is home to 90,027 people - one of 386 US counties ASCE 7 itself routes around a map figure for.
Northumberland County at a glance
- Population90,027
- Annual snowfall, NOAA normal28.6 in.
- FIPS42097
How much it actually snows in Northumberland County
Most winters bring Northumberland County roughly 28.6 in. of snow - NOAA's normal at SUNBURY, PA US, 4.1 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Northumberland 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 Northumberland County's county-wide figure. Details: the calculation guide.