Number of Days from Budbreak to Harvest for Our Varieties

I have been reading over my blogposts from the past and came upon one that I wrote in 2018 called Vine Cycle and Vineyard Activities. In that blogpost, I calculated the number of days from budbreak to harvest for our Auxerrois, Chenin Blanc and Chardonnay. Since that time, we have a few more data points that we can add so here is the updated chart.

Variety	Budbreak	Harvest	# of Days
Axerrois	April 30, 2017	September 21, 2017	144
	May 7, 2018	September 17, 2018	137
	April 27, 2019	September 23, 2019	149
	May 8, 2020	September 17, 2020	132
	May 1, 2021	September 28, 2021	150
Chenin Blanc	May 8, 2015	September 22, 2015	137
	April 26, 2016	September 26, 2016	156
	April 30, 2017	October 7, 2017	160
	May 4, 2018	October 14, 2018	163
	April 25, 2019	October 14, 2019	172
	May 4, 2020	October 11, 2020	160
	May 3, 2021	October 17, 2021	167
Chardonnay	April 30, 2017	September 23, 2017	146
	May 4, 2018	September 30, 2018	149
	April 25, 2019	September 28, 2019	156
	May 2, 2020	September 24, 2020	145
	April 28, 2021	October 3, 2021	158
Cabernet Sauvignon	May 9, 2018	October 20, 2018	164
	May 7, 2019	November 3, 2019	180
	May 7, 2020	October 22, 2020	168
	May 7, 2021	October 24, 2021	170
Cabernet Franc	May 7, 2018	October 20, 2018	166
	April 29, 2019	October 26, 2019	180
	May 8, 2020	October 22, 2020	167
	May 3, 2021	October 24, 2021	174
Barbera	May 2, 2020	October 28, 2020	172
	April 29, 2021	October 25, 2021	179

This chart shows at a glance how many days it was from budbreak to harvest for our varieties. It shows that the Auxerrois is the first to ripen and consequently gets harvested first, followed by the Chardonnay, Chenin Blanc, the two Cabernet varieties and then the Barbera. It also shows the number of days from budbreak to harvest so that we can get an idea of when the various grapes will ripen in any given year, subject to Mother Nature (of course).