Tioga County, PA Roof Snow Load - 21 psf
Tioga County, PA: your roof's ASCE 7 snow number, in plain English
Tioga 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.
Tioga County in numbers
- Design roof snow load21 psf
- Ground snow load, ASCE 7 map30 psf
- National rank#440 of 2,758
- Pennsylvania rank#18 of 38
- Population40,698
- Annual snowfall, NOAA normal54 in.
- FIPS42117
Tioga County by the numbers
Nationally that's #440 out of 2,758 rated counties, the top 16%; within Pennsylvania alone, Tioga County ranks #18 of 38. Pennsylvania counties average 20.9 psf; Tioga County runs 0.1 psf higher than that.
Tioga County, FIPS 42117, is home to 40,698 people near 41.7669°N 77.2573°W. Its 30 psf ground snow load figure is the map value; 21 psf is what a roof is actually designed for.
Tioga County's snowfall, most winters
54 in. a year: that's Tioga County's NOAA 1991-2020 snowfall normal, measured at COVINGTON 2 WSW, PA US (7.6 mi away). See the density guide.
Before you rely on Tioga County's number
Treat the Tioga 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. (How this figure is calculated.)