Northwest Hills Planning Region, CT Roof Snow Load - 28 psf

What ASCE 7 says about snow load in Northwest Hills Planning Region

Converted to something you can actually eyeball on a roof: about 61.6 in. of fresh powder, 22.4 in. once it settles and packs down, or just 5.6 in. if it's turned to 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.

Northwest Hills Planning Region, CT: quick facts

• Design roof snow load28 psf
• Ground snow load, ASCE 7 map40 psf
• National rank#228 of 2,758
• Connecticut rank#1 of 9
• Population114,101
• Annual snowfall, NOAA normal74.9 in.
• FIPS09160

Where Northwest Hills Planning Region's figure sits nationally

Out of 2,758 rated US counties, Northwest Hills Planning Region sits at #228, the top 8% nationally - #1 of 9 within Connecticut. That's 5.4 psf above Connecticut's own county-average design load of 22.6 psf.

Near 41.8548°N 73.2215°W, FIPS 09160: Northwest Hills Planning Region counts 114,101 residents and a 40 psf map value, which the code's own factors turn into 28 psf.

How much it actually snows in Northwest Hills Planning Region

Most winters bring Northwest Hills Planning Region roughly 74.9 in. of snow - NOAA's normal at NORFOLK 2 SW, CT US, 8.1 mi off. (fresh vs. packed vs. ice explains why.)

Read this before you rely on it

Northwest Hills Planning Region's number above is ASCE 7-22's default case, not a custom calculation: ordinary residential occupancy, heated, sited on ground that's neither fully sheltered nor fully exposed. Any one of those changing - pitch, exposure, heating, occupancy - moves the real figure.

Nothing here substitutes for an address-level number. Get one free, in about a minute, from the ASCE 7 Hazard Tool using your own coordinates rather than Northwest Hills Planning Region's county-wide figure. See the methodology guide.