ritish Columbia -- One of the latest grape harvests in memory has been followed by the second-earliest harvest of frozen grapes for ice wine ever recorded in British Columbia’s Okanagan Valley. A string of cold days culminated in air temperatures of at least minus-8°C (17.6°F) on Nov. 22, triggering ice wine harvest -- the earliest since the freakishly advanced harvest of Nov. 5, 1993. Quails’ Gate Estate Winery near Kelowna began picking approximately four tons of Riesling grapes in the wee hours of Tuesday morning, completing harvest within hours.