Gold Hill Weather -- Boulder County, CO

Gold Hill, CO -- Historic Mining Town Above Fourmile Canyon

Early September through late October is the stretch when Boulder County's mountain fire risk is at its most dangerous, and Gold Hill has the record to prove it twice over. The Fourmile Canyon Fire ignited September 6, 2010. The Cal-Wood Fire ignited October 17, 2020. Both burned in this corner of the county, and both ran hardest in the first hours, driven by dry westerly wind over cured autumn fuel after a summer with no meaningful rain.

The town sits at 8,463 feet on a ridge above Fourmile Canyon, one of Colorado's older surviving mining settlements and still reachable mainly by unpaved road. That elevation puts it a full 3,000 feet above Boulder and well into the montane zone: snow arrives in October and can persist into May, the growing season is short, and the community routinely runs 15 to 20 degrees colder than the city on a winter night.

Access is the weather variable that matters most here. Gold Hill Road and Lickskillet Road climb steeply on dirt, and Lickskillet in particular is among the steepest county-maintained roads in the state -- conditions that are merely inconvenient in town become genuinely limiting on those grades. Residents plan winter travel around road surface rather than air temperature, and summer afternoon thunderstorms arrive over the ridge earlier than they reach the plains.

Fire Risk and History

Gold Hill carries an extreme wildfire risk and sits inside a documented burn area. Boulder County's burned-area report names Gold Hill, along with Salina and Wallstreet, among the towns within the 2010 Fourmile Canyon Fire perimeter -- a fire that burned 6,179 acres between September 6 and September 13 and destroyed 166 homes, with losses estimated at $217 million. The Gold Hill fire department's own account records the toll in the terms that matter locally: neighbors lost homes.

Ten years later the Cal-Wood Fire started October 17, 2020 near the CalWood Education Center outside Jamestown, burned approximately 10,112 acres, and became the largest fire by acreage in Boulder County's recent history. Twenty homes and two cabins were destroyed, and a second blaze near Ward -- the Lefthand Canyon Fire -- burned another 460 acres the following day. Gold Hill sits between the two burn areas.

Elevation and Microclimate

At 8,463 feet Gold Hill is the highest of the new Boulder County pages and sits about 1,200 feet above Sugarloaf on the same ridge system. Winter storms that fall as rain in Boulder are reliably snow here, and the town holds snowpack on north-facing slopes weeks after the foothills below have cleared. UV exposure at this elevation is substantially stronger than at sea level, and the combination of thin air and high sun angle makes summer sun protection a genuine consideration even on cool days.

Flood Zone Information

Gold Hill's parcels are designated FEMA Flood Zone X, with no mapped riverine floodplain on this ridge-top site. The meaningful water hazard in burned mountain terrain is post-fire debris flow -- after the Fourmile fire removed canopy and soil structure across the drainage below, runoff response to intense summer rainfall increased sharply for years. The September 2013 flood caused severe damage in the canyon communities downstream. Parcel designations can be verified at the Flood Map Service Center.

Nearby Weather Pages

• Sugarloaf weather -- southern edge of the same Fourmile burn area
• Ward weather -- Peak to Peak town north, hit by the 2020 Lefthand Canyon Fire
• Jamestown weather -- Cal-Wood Fire ignition area northwest

References

• Fourmile Canyon Fire Emergency Stabilization Burned Area Report -- Boulder County
• The Fourmile Canyon Fire, 10 Years Later -- Gold Hill Fire Department
• 2020 Cal-Wood and Lefthand Canyon Fires -- Boulder County
• FEMA Flood Map Service Center