Lots of new stuff, but the most noticeable is KML file generation for Google Earth
Linux/Mac : python3 ghcn.py US.txt date=07141936
Windows : ghcn.exe US.txt date=07141936
Follow the directions here to get the latest. First time Linux/Mac users will also have to execute these lines from a terminal window.
python3 -m pip install matplotlib
python3 -m pip uninstall numpy
python3 -m pip install numpy==1.12.1