I have made another block, which uses your station data. It shows you the trends for various parameters for the selected period (1h, 3h, ….. month).
The trend is shown as a smoothened line graph and the overall regression value of trend is given. The block uses Ajax for updating, so no need to reload anything.
Just upload to your blocks directory. It will automatically appear in your admin blocks settings, but there will not be any “settings” link, only the version check, because this block requires no set up.