Venango County, PA Roof Snow Load - 21 psf
Venango County, PA: your roof's ASCE 7 snow number, in plain English
Venango County's roofs are built to hold 21 psf of snow, the ASCE 7-22 figure a permit reviewer checks first.
In depth, not weight: that's roughly 46.2 inches of fresh, light snow, 16.8 inches of old, settled snow, or as little as 4.2 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. This is a meaningful design load - most modern-code homes handle it fine, though an addition, a carport or a flat-roofed section can be a weak spot.
Venango County at a glance
- Design roof snow load21 psf
- Ground snow load, ASCE 7 map30 psf
- National rank#436 of 2,758
- Pennsylvania rank#16 of 38
- Population49,476
- Annual snowfall, NOAA normal53.7 in.
- FIPS42121
Venango County by the numbers
Nationally that's #436 out of 2,758 rated counties, the top 16%; within Pennsylvania alone, Venango County ranks #16 of 38. That's 0.1 psf above Pennsylvania's own county-average design load of 20.9 psf.
Venango County, FIPS 42121, is home to 49,476 people near 41.4007°N 79.7658°W. Its 30 psf ground snow load figure is the map value; 21 psf is what a roof is actually designed for.
Venango County's snowfall, most winters
53.7 in. a year: that's Venango County's NOAA 1991-2020 snowfall normal, measured at FRANKLIN, PA US (3.4 mi away). See the density guide.
Before you rely on Venango County's number
Treat the Venango 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. See the methodology guide.