I just spotted that my Nagios/RRD graphs of my home server are showing a strange correlation.
From these graphs, it seems that the higher the outdoor temperature, the more free memory the system has available. I’m sure this is just a coincidence, though…
Jonathan Gazeley 
Same here. I put the monitoring of outside temperature on out monitoring dashboard, without captions what is this. After some time all the C** managers have stated that “it has clear correlation with the number of incoming orders in webshop” 🙂
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