Alcona County, MI Roof Snow Load - 35 psf
What ASCE 7 says about snow load in Alcona County
That's Alcona County's design roof snow load per ASCE 7-22, for a typical heated single-family home - the number a permit reviewer starts from.
Converted to something you can actually eyeball on a roof: about 77 in. of fresh powder, 28 in. once it settles and packs down, or just 7 in. if it's turned to ice. This is a serious structural load - older homes built before modern snow-load provisions, or ones with low-slope or flat roof sections, are worth having checked.
Already snow on the roof in Alcona County?
Alcona County in numbers
- Design roof snow load35 psf
- Ground snow load, ASCE 7 map50 psf
- National rank#177 of 2,758
- Michigan rank#30 of 70
- Population10,624
- Annual snowfall, NOAA normal41.3 in.
- FIPS26001
Where Alcona County's figure sits nationally
Out of 2,758 rated US counties, Alcona County sits at #177, the top 6% nationally - #30 of 70 within Michigan. 31.7 psf is Michigan's typical county figure - Alcona County beats it by 3.3 psf.
Near 44.6575°N 83.2946°W, FIPS 26001: Alcona County counts 10,624 residents and a 50 psf map value, which the code's own factors turn into 35 psf.
How much it actually snows in Alcona County
Most winters bring Alcona County roughly 41.3 in. of snow - NOAA's normal at GLENNIE 2SE, MI US, 21.7 mi off. (fresh vs. packed vs. ice explains why.)
Read this before you rely on it
Alcona County'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 Alcona County's county-wide figure. Details: the calculation guide.