Perennial Vintners weather station and related links

Being a grape grower, the weather becomes very important, especially when pioneering a grape growing area, even more especially when it's a cool-climate region. Mike, the owner and viticulturist at Perennial Vintners has an old-time computer programmer and electronics background from his career before viticulture. Mike maintains his interest in the science behind grape growing by keeping up on the latest technology, and with his weather station project.

With a financial contribution from his friend Andrew MacMillen of Hawkfeather Web Design, Mike purchased a weather station from Davis Instruments and installed it in his vineyard in 2012.

Mike has built a system around this data, that facilitates weather condition warnings via txt or email, and tracks/plots Growing Degree Days, etc. Most significantly, it extrapolates Powdery Mildew growth from weather conditions and warns the owner that it's time to spray. Once other local winegrowers learned of this system, many wanted "in". The system now serves about a dozen small vineyards in the Puget Sound AVA, each with their own local weather station (see below).

Perennial Vintners custom Powdery Mildew tracking website (PMI)

Follows are the Puget Sound AVA weather stations that contribute their data for public use. This data can be viewed in detail within our PMI website (above). Below are links to their console page and automated (updated hourly) GDD charts.

Initials in PMI website Website for the business Location Console display GDD chart
PV Perennial Vintners Bainbridge Island Console GDD
PTV Port Townsend Vineyards, Jackman Vineyard Port Townsend Console GDD
PTVW Port Townsend Vineyards, winery location Port Townsend Console GDD
SCV Skagit Crest Vineyard & Winery Sedro Woolley Console GDD
RCPT Raincoast Farm Port Townsend Console GDD
MFV Monument Farm Vineyard Vashon Island Console GDD
HTV Horsetales Vineyard Olympia Console GDD
ECV Eagle Crest Vineyard Ridgefield Console GDD
MIW Maury Island Winery Maury Island Console GDD
ACV Anna's Cellar Vineyard Port Townsend Console GDD
15F 15 Firs Vineyard Auburn Console GDD
RRV Ravens Ridge Vineyard, Sequim Sequim Console GDD

PMI system relatedMisc.
Davis Vantage Vue batteries Our data at
Instructions for a new client install Our data at
website "Console" problems Our data at CWOP/MesoWest
System problems UW Atmos. Sci. NW radar loop
Updates not happening UW Atmos. Sci. IR Pacific/NW

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