With the rollout of the new vintages section, I've been creating weather summaries for the same regions. An example is below or you can check them all out here: http://vinifera.info/vintages/
My source dataset is much more dense than the typical weather observations so I can provide very location specific information, but the data is an approximation, not actual observations. For now, the data goes back to 2008 and I'm working on going back further. Take a look if you're interested and if you've got on-the-ground verification for any of the info, I'm happy to hear it.