Is there any point to this thread?
The OP posted;
The Golbourn AWOS reports the real time temp of say -10.5 deg C. I see it sitting at my desk. several days later i look at the temperature records and see that the lowest temp on that day has been adjusted to something like -9.0.
These were made up examples, not actual readings which have lead to over six pages and over one hundred posts for a fictitious 1.5 degrees.