Hillsborough County, FL Roof Snow Load - 0 psf
How much snow is too much for a roof in Hillsborough County, FL?
0 psf: that's what ASCE 7-22 requires a typical heated home's roof in Hillsborough County to carry.
Picture it, not just weigh it: 0 in. if it's fresh powder, 0 in. once it settles, or a mere 0 in. if it's ice. This county’s ground snow load maps to zero - snow load is not a driver of roof design here.
Hillsborough County in numbers
- Design roof snow load0 psf
- Ground snow load, ASCE 7 map0 psf
- National rank#2,485 of 2,758
- Florida rank#4 of 67
- Population1,581,426
- Annual snowfall, NOAA normal0 in.
- FIPS12057
How Hillsborough County compares
0 psf ranks #2,485 of 2,758 US counties with a mapped snow load (top 90%) - and #4 of 67 in Florida. Hillsborough County's figure lands almost exactly on Florida's own county-average of 0 psf.
Population 1,581,426 (FIPS 12057), roughly 27.8932°N 82.38°W. The 0 psf ground snow load ASCE 7-22 maps here becomes 0 psf once the code's own design factors are applied.
Typical snowfall in Hillsborough County, FL
NOAA's 30-year normal for Hillsborough County: 0 in. of snow a year, from the VALRICO 2.2 SE, FL US station. (fresh vs. packed vs. ice explains why.)
What this Hillsborough 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.
Hillsborough 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.