Marlborough at a glance
Over the 30 growing seasons from 1991 to 2020, Marlborough's vines saw on average 1,240 growing degree days between October and April. That puts it in Winkler region I, close in heat and rain to Champagne, Rheingau and Alsace. In a typical year about 420 mm of rain falls in the growing season, 119 mm of it in March–April.
Since 2000 the warmest season was 2018 (+17% against normal) and the coolest 2012 (-11%). The wettest harvest window was 2017, with 256 mm against a normal 119 mm.
The last 10 vintages (2016–2025) averaged +9% against the 1991–2020 normal, compared with -0% for 2000–2009; 9 of those 10 seasons were warmer than normal by more than 3%.