Raven's Call

Raven's Call
Haida Raven

Wednesday, October 6, 2010

COOL... literally

2010 Grape Growing Degree Days

It’s been a pretty dismal grape growing season here in Puget Sound, and apparently all across the state (and up and down the west coast, so I hear). This chart from the WSU Viticulture site shows that 2010 is about as bad as it has ever been (in 18 years of recorded history, of course..). (The WSU-IAREC headquarters are in Prosser, WA.)
Remember that Puget Sound AVA is pretty pitiful, historically, compared to eastern WA AVAs.

And then (at least at Mt. Vernon, which is the reported reference station for Puget Sound on the WSU site), this year has been equally below the long-term average.

But when I download the raw data from the station close to our vineyard (WSU Puyallup station – only 0.90 miles from our place), and compare to Mt. Vernon, it shows we are doing considerably better here than Mt. Vernon.

We are just below 1,600 GDD, and not likely to gain too much more. Unfortunately I have not yet found where to download the long-term average for the WSU Puyallup station, so cannot say specifically how this year compares with average at this location, but I am certain it is proportionally as bad as other locations have been.
Still, after all the charts, it's good to remember that it's all about the fruit:
Pinot noir at Raven's Call Vineyard


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