Colusa County, CA Roof Snow Load - 0 psf
Colusa County, CA: your roof's ASCE 7 snow number, in plain English
Colusa County's roofs are built to hold 0 psf of snow, the ASCE 7-22 figure a permit reviewer checks first.
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.
Colusa County at a glance
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,661 of 2,758
- California rank#40 of 41
- Population22,074
- Annual snowfall, NOAA normal0 in.
- FIPS06011
Colusa County by the numbers
Nationally that's #2,661 out of 2,758 rated counties, the top 96%; within California alone, Colusa County ranks #40 of 41. 1.1 psf is California's typical county figure - Colusa County comes in 1.1 psf under it.
Colusa County, FIPS 06011, is home to 22,074 people near 39.1777°N 122.2376°W. Its 0 psf ground snow load figure is the map value; 0 psf is what a roof is actually designed for.
Colusa County's snowfall, most winters
0 in. a year: that's Colusa County's NOAA 1991-2020 snowfall normal, measured at COLUSA 2 SSW, CA US (11.3 mi away). See the density guide.
Before you rely on Colusa County's number
Treat the Colusa 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.