Thanks, Edouard.
I don't have any scripts running.
I see a few posters have a "WeatherCat Memory" pane: that would be very handy! My only memory usage gen comes from Activity Monitor. WC hovers under the 400MB mark; doesn't vary much. This has been the norm for the last few months, before even Mavericks.
What IS tedious, though, is a recent (last few days, after re-install of WC/drivers, etc) nuisance: the Preferences pane will open, but immediately freeze (see attachment) - I can't access any buttons/options. I get a brief respite if I restart it, but it has run for weeks in the past, untroubled.
WC has been up for 24 hours (with this niggle throughout), and where I used to get isolated (i.e. 0 0r 1) errors, the Gauges pane shows 1 Data error and 40 Sensor errors out of 94K total. Same connections; new Console batteries; long sunshine hours.
Cheers,
Robin..