“Spring-summer (AMJJ) temperature anomalies of 4.7 °C to 6.8 °C being significantly higher than in 2003 were assessed for 1540 from a new long Swiss GHD series (1444 to 2011). During the climax of the heat wave in early August the grapes desiccated on the vine”
An underestimated record breaking event – why summer 1540 was likely warmer than 2003 – NASA/ADS
