Climate experts say that global warming makes nighttime temperatures below 0F nearly impossible in the US.
So far this year, 11.1% of US nighttime temperature readings have been below 0F – the fifth highest on record for the date.
Generated using GHCN command
./ghcn.exe US23042014.txt through=0423 > US23042014_through_0423.csv
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Very helpful to have you put the command line there Steve. Still haven’t played around much with it but now that I have it working I will be diving in more once I get a few other pressing issues out of the way.
I think it would be cool to take the daily data and generate a USA temperature map for each day in the record (by area weighting the geographical positions somehow), then take every frame and create a movie of the entire record. It should show weather patterns over time going back decades. Can one leave 1000+ files open (open them all, then read one day from each one, and post the results by station & location in a new file for each day), then close them all? I’ve never tried doing that many at once. Opening and closing them for each day might have a hard drive doing backflips. Playing a movie like that would probably show obvious errors as a wrong color spot.