The McLaren Vale Wine region has been significantly wetter this vintage than previous years, with rainfall recorded well above the average. Spring 2016 had record falls. There has been only one summer season in the last ten years, that has comparable rainfall leading up to vintage. January 2007 received 64.2mm, and this year 2017 – 80mm.
February only had a few days of heat this year, and the cooler weather and high crop load meant many vineyards in the region had green fruit among ripening fruit, so bunches had to be dropped. Despite this, Thomas Vineyard had a record harvest of 46 tonne, the closest production record to this was in 2004, at 36 tonne, picking four weeks later than normal this year.