Auxerrois Grapes Advancing Growth Stage

I blogged about Berryset in the Vineyard on July 8th. A few days later when my husband and I were working in the vineyard, we noticed that some of the Auxerrois had advanced from stage 71 to stage 73. According to the online reference Grapevine Structure and Function written by Ed Hellman, stage 73 is described as "berries swelling, clusters beginning to hang."
This occurred in just 4 days time. On July 11, we had a rain event that brought 1-inch of rain to the vineyard. This is a good thing because the last time we had a rain event was on June 25th, when we had 2-inches of rain. The rain on July 11 coupled with beautiful weather with temperatures in the high eighties caused the Auxerrois to swell and begin to hang.

We haven't been to the vineyard in what seems like a long time. We need to check out how our other varieties are doing, pronto! References:
1. Ed Hellman, Grapevine Structure and Function.