Coconino County, AZ Roof Snow Load - 0 psf

Coconino County, AZ: your roof's ASCE 7 snow number, in plain English

In depth, not weight: that's roughly 0 inches of fresh, light snow, 0 inches of old, settled snow, or as little as 0 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. Snow load is not a factor in roof design here at all; the ground snow load figure maps to zero.

Coconino County, AZ: quick facts

• Design roof snow load0 psf
• Ground snow load, ASCE 7 map0 psf
• National rank#2,564 of 2,758
• Arizona rank#7 of 13
• Population145,161
• Annual snowfall, NOAA normal3.4 in.
• FIPS04005

Coconino County by the numbers

Nationally that's #2,564 out of 2,758 rated counties, the top 93%; within Arizona alone, Coconino County ranks #7 of 13. Arizona counties average 0.4 psf; Coconino County runs 0.4 psf lower than that.

Coconino County, FIPS 04005, is home to 145,161 people near 35.8297°N 111.7737°W. Its 0 psf ground snow load figure is the map value; 0 psf is what a roof is actually designed for.

Coconino County's snowfall, most winters

3.4 in. a year: that's Coconino County's NOAA 1991-2020 snowfall normal, measured at WUPATKI NM, AZ US (30.9 mi away). 30.9 mi is a real gap between Coconino County and its nearest reporting station, so local snowfall can diverge from this figure, especially near elevation changes. See the density guide.

Before you rely on Coconino County's number

Treat the Coconino 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.)