Pacific Northwest Fruit & Nut Growers

[swincher]

@markshancock

I was curious about that too so I have been looking at WUnderground data but I have not been able to find annual history for any of the local stations yet.

You should be able to find years of data for most of the NOAA/NWS stations here:

Search | Climate Data Online (CDO) | National Climatic Data Center (NCDC)

Get them in CSV format to import into Excel or Google sheets.

I did that same USDA zone calculation in this thread a little while back for the official Seattle station:

Seattle should be moving to zone 9a in the next update

In the USDA map based on data as of 1990, Seattle was placed in zone 8a, meaning the 30-year average of the annual minimum temperature was 10-15°F at that point. The latest USDA growing zone maps were based on 2012 data, when Seattle’s number was in the upper teens and we were moved to zone 8b. Well I don’t know when the USDA will be updating their maps next, but at least for the official Seattle weather station, our 30-year average is now 21.2°F, which would put us in 9a if the map was re-dra…