No idea Eugene, but the average daily temperature in Auckland would be a couple of degrees higher than in Wellington. So to my mind that wouldn't work. Ina Crossley Auckland New Zealand Zone 10 On 15/02/2013 5:48 p.m., Eugene Zielinski wrote: > Ina -- I wonder if they're taking the average daily temperature rather than > the minimum daily temperature. I've seen a couple of "zone" maps that have > done this. > > Eugene Zielinski > Rapid City, SD > USA > Zone 5 > > > >