Capitol Planning Region, CT Roof Snow Load - 21 psf

Capitol Planning Region, CT: your roof's ASCE 7 snow number, in plain English

In depth, not weight: that's roughly 46.2 inches of fresh, light snow, 16.8 inches of old, settled snow, or as little as 4.2 inches of solid ice - snow that heavy is rare here but ice from a freeze-thaw cycle adds up far faster than the depth suggests. A meaningful design load. Most homes built to modern code handle it, but additions, carports, and flat-roofed sections are worth a second look.

Capitol Planning Region, CT: quick facts

• Design roof snow load21 psf
• Ground snow load, ASCE 7 map30 psf
• National rank#381 of 2,758
• Connecticut rank#4 of 9
• Population991,508
• Annual snowfall, NOAA normal51.7 in.
• FIPS09110

Capitol Planning Region by the numbers

Nationally that's #381 out of 2,758 rated counties, the top 14%; within Connecticut alone, Capitol Planning Region ranks #4 of 9. That's 1.6 psf below Connecticut's own county-average design load of 22.6 psf.

Capitol Planning Region, FIPS 09110, is home to 991,508 people near 41.817°N 72.5759°W. Its 30 psf ground snow load figure is the map value; 21 psf is what a roof is actually designed for.

Capitol Planning Region's snowfall, most winters

51.7 in. a year: that's Capitol Planning Region's NOAA 1991-2020 snowfall normal, measured at HARTFORD BRADLEY INTL AP, CT US (10 mi away). See the density guide.

Before you rely on Capitol Planning Region's number

Treat the Capitol Planning Region figure as a starting point, not a final answer: it assumes standard occupancy, a heated structure and a moderately sheltered site, per ASCE 7-22's own defaults. Exposed terrain, an unheated building or a steeper roof all shift the real number.

For a real application, skip the county number and go straight to the ASCE 7 Hazard Tool - enter your coordinates and it returns a site-specific figure a plan reviewer will recognize. (How this figure is calculated.)