Marquette County, WI Roof Snow Load - 24.5 psf
How much snow is too much for a roof in Marquette County, WI?
24.5 psf: that's what ASCE 7-22 requires a typical heated home's roof in Marquette 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.
Marquette County, WI: quick facts
- Design roof snow load24.5 psf
- Ground snow load, ASCE 7 map35 psf
- National rank#347 of 2,758
- Wisconsin rank#55 of 72
- Population15,743
- Annual snowfall, NOAA normal46.4 in.
- FIPS55077
How Marquette County compares
24.5 psf ranks #347 of 2,758 US counties with a mapped snow load (top 13%) - and #55 of 72 in Wisconsin. 30.9 psf is Wisconsin's typical county figure - Marquette County comes in 6.4 psf under it.
Population 15,743 (FIPS 55077), roughly 43.8261°N 89.4091°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 Marquette County, WI
NOAA's 30-year normal for Marquette County: 46.4 in. of snow a year, from the WAUTOMA-SILVER LAKE SAN DIST, WI US station. (fresh vs. packed vs. ice explains why.)
What this Marquette 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.
Marquette 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.)