In case it's of use or interest, a random search of CPAN just now found these distributions:

• Weather::NOAA::GFS by Lorenzo Becchi (2005) - Perl module for forecast weather maps from NOAA GFS site data
• Weather::NOAA::Alert by Michael Stovenour (2011) - Polling and parsing of NOAA CAP 1.1 Alerts
• Weather::GHCN::Fetch by Gary Puckering (2022) - Access the NOAA GHCN Global Historical Climatology Network repository (new author, probably not worth looking at ;-)

• Geo::WeatherNOAA by Mark Solomon (2006) - Perl extension for interpreting the NOAA weather data
• Geo::METAR by Koos van den Hout (2008) - Process aviation weather reports in the METAR format
• Geo::WeatherNWS by Bob Ernst (2018) - A simple way to get current weather data from the NWS

• Bot::BasicBot::Pluggable::Module::Weather by Simon Wistow (2005) - Get the weather forecast from NOAA
• Ham::NOAA::Sunspot by Roger Pettett (2017) - Process sunspot prediction data from NOAA FTP/Website

Googling found this background reference on GHCN: Dive into the Global Historical Climatology Network data using Perl and SQL by A. Sinan Unur. See also: National Oceanic and Atmospheric Administration (NOAA) and NOAA Global Historical Climatology Network Daily (GHCN-D).

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