No, a new 60 second average is calculated, and emitted, on every new measurement.
However, there is still an issue that the averaging window for the internal cache may not be aligned with the one that DataYours is using.
Also, how accurately is the acquisition machine timestamp synchronised with the one doing the averaging and storage?
It’s actually not a trivial problem for these reasons, but there are different options, so do try it, investigate the results, and report back!
Good luck,
AK