Dillingham Census Area, AK Roof Snow Load - Case Study Area
Dillingham Census Area, AK: no map figure, on purpose
Dillingham Census Area sits in the mountain-west terrain where ASCE 7-22 §7.2 itself declines to give a contour figure - elevation changes too fast over short distances there for one number per county to mean anything. The code requires a site-specific study for a building here, not a look-up.
Dillingham Census Area, FIPS 02070, is home to 4,642 people - one of 386 US counties ASCE 7 itself routes around a map figure for.
Dillingham Census Area, AK: quick facts
- Population4,642
- Annual snowfall, NOAA normal47.4 in.
- FIPS02070
How much it actually snows in Dillingham Census Area
Most winters bring Dillingham Census Area roughly 47.4 in. of snow - NOAA's normal at KING SALMON, AK US, 83.3 mi off. 83.3 mi is a real gap between Dillingham Census Area and its nearest reporting station, so local snowfall can diverge from this figure, especially near elevation changes. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Dillingham Census Area's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.
Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Dillingham Census Area's county-wide figure. Details: the calculation guide.