Greene County, MO Roof Snow Load - 15 psf
How much snow is too much for a roof in Greene County, MO?
15 psf: that's what ASCE 7-22 requires a typical heated home's roof in Greene County to carry. Flat and low-pitch roofs in Greene County are actually governed by ASCE 7's §7.3.4 minimum of 15 psf, not the 10.5 psf the ground-load formula alone would produce.
Picture it, not just weigh it: 33 in. if it's fresh powder, 12 in. once it settles, or a mere 3 in. if it's ice. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.
Got real snow on a Greene County roof right now?
Greene County at a glance
- Design roof snow load15 psf
- Ground snow load, ASCE 7 map15 psf
- National rank#1,318 of 2,758
- Missouri rank#85 of 115
- Population307,942
- Annual snowfall, NOAA normal9.3 in.
- FIPS29077
How Greene County compares
15 psf ranks #1,318 of 2,758 US counties with a mapped snow load (top 48%) - and #85 of 115 in Missouri. 18.6 psf is Missouri's typical county figure - Greene County comes in 3.6 psf under it.
Population 307,942 (FIPS 29077), roughly 37.2582°N 93.3406°W. The 15 psf ground snow load ASCE 7-22 maps here becomes 15 psf once the code's own design factors are applied.
Typical snowfall in Greene County, MO
NOAA's 30-year normal for Greene County: 9.3 in. of snow a year, from the ASH GROVE 4S, MO US station. (fresh vs. packed vs. ice explains why.)
What this Greene 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.
Greene 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. Details: the calculation guide.