Greeley, CO Frost Depth & Snow Load: Frost Line Depth (2026)

Greeley adds its own Table R301.2(1) to the municipal code rather than leaving the model code's blanks unfilled, and the frost line depth column reads 30 inches. That is a genuinely different figure from the Denver metro cities to the south, which sit at 36 inches, and it is the kind of difference that only exists because Colorado has no statewide residential code to flatten it. The same table records weathering as Severe, seismic design category B, wind speed 115 mph, and termite risk as Slight to Moderate, with topographic effects, special wind region and wind-borne debris zone all marked no. The city enforces the 2021 International Building Code and 2021 International Residential Code alongside the 2023 National Electrical Code.