[ygra]

It's a nice idea, for sure. I'm not sure I'd use it much since other considerations apart from weather also exist.

A few things I've noticed:

• The search could use some awareness about other names of locations. For example, München cannot be found, Munich can. Tübingen doesn't seem to exist at all (maybe too small).

• For people outside the US (yes, they exist) it'd also be nice to have a site-wide switch to metric. This then won't require you to have two charts of everything either (except snow coverage which doesn't seem to exist in metric).

• The legends for the charts look a lot like buttons, which can be a bit confusing at first. Maybe it's better to integrate the legend into the charts, e.g. maybe like http://hypftier.de/temp/2017-08-23_090140.png – would also save a bit of space; whitespace currently looks a bit haphazardly applied in general.

• The animation of the charts seems a bit pointless, considering that they're all below the fold anyway.

[malmsteen]

omg the metric one is so important. it should even be default 8-o

[ygra]

Depends on where most of your audience comes from.