The Oakland Upper Temescal website uses Meteotemplate, a free customizable website template available at www.meteotemplate.com. The template uses its own MySQL database and therefore is able to calculate any parameter or statistic and also does not rely on any other external services. It was first released in July 2015 and is regularly updated.
This website has been up in one form another since 2001, and was created and maintained by John P. Monteverdi.
Meteotemplate Homepage - info, download
Meteotemplate Blog - updates, info, RSS, support
Meteotemplate Wiki - install instructions