Huron County, MI Roof Snow Load - 24.5 psf
How much snow is too much for a roof in Huron County, MI?
24.5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Huron County to carry.
Picture it, not just weigh it: 53.9 in. if it's fresh powder, 19.6 in. once it settles, or a mere 4.9 in. if it's ice. 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.
Huron County in numbers
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#333 of 2,758
- Michigan rank#49 of 70
- Population30,780
- Annual snowfall, NOAA normal47.2 in.
- FIPS26063
How Huron County compares
24.5 psf ranks #333 of 2,758 US counties with a mapped snow load (top 12%) - and #49 of 70 in Michigan. Michigan counties average 31.7 psf; Huron County runs 7.2 psf lower than that.
Population 30,780 (FIPS 26063), roughly 43.9076°N 82.857°W. The 35 psf ground snow load ASCE 7-22 maps here becomes 24.5 psf once the code's own design factors are applied.
Typical snowfall in Huron County, MI
NOAA's 30-year normal for Huron County: 47.2 in. of snow a year, from the HARBOR BEACH 1 SSE, MI US station. (fresh vs. packed vs. ice explains why.)
What this Huron County figure assumes
This is a county-level reference figure for a typical heated home built to Risk Category II (ordinary residential), on a partially exposed lot - the assumptions ASCE 7-22 itself treats as the default case. A steeper roof, a fully exposed hilltop lot, an unheated structure, or a higher risk category all change the actual number.
Huron County's permit office wants an address-specific figure, not this county average - the ASCE 7 Hazard Tool is free, takes under a minute, and outputs a PDF most reviewers accept. (How this figure is calculated.)