Morton County, ND Roof Snow Load - 24.5 psf
Morton County, ND: your roof's ASCE 7 snow number, in plain English
Morton County's roofs are built to hold 24.5 psf of snow, the ASCE 7-22 figure a permit reviewer checks first.
In depth, not weight: that's roughly 53.9 inches of fresh, light snow, 19.6 inches of old, settled snow, or as little as 4.9 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.
Morton County in numbers
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#331 of 2,758
- North Dakota rank#34 of 49
- Population34,194
- Annual snowfall, NOAA normal44.5 in.
- FIPS38059
Morton County by the numbers
Nationally that's #331 out of 2,758 rated counties, the top 12%; within North Dakota alone, Morton County ranks #34 of 49. 29.4 psf is North Dakota's typical county figure - Morton County comes in 4.9 psf under it.
Morton County, FIPS 38059, is home to 34,194 people near 46.71°N 101.31°W. Its 35 psf ground snow load figure is the map value; 24.5 psf is what a roof is actually designed for.
Morton County's snowfall, most winters
44.5 in. a year: that's Morton County's NOAA 1991-2020 snowfall normal, measured at NEW SALEM 5NW, ND US (15.2 mi away). See the density guide.
Before you rely on Morton County's number
Treat the Morton 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.