METAR data

I tried to write my own weather plugin similar to the wordpress plugin Hendrik uses.
I ended fixing Jeremey Zawodny’s p5-Geo-METAR plugin.
I have learned that americans measure air pressure in inches of mercury.
And I have learned a lot more about the METAR format, a standard for weather reports, than I wanted to know.
Sampsa Toivanen wrote a nice overview.
More Useful links:

I committed a first patch to the FreeBSD port.
But then I got tired and installed the ugly php code of the WordPress plugin.