A few days ago I noted that the GHCN database for Australia has very little data prior to 1957, and wondered if the jump was due to Sputnik.
Well it turns out that lack of data prior to 1957 is due to GHCN simply not including it. Berkeley Earth has Nobbys data going back to the 1860’s, but the GHCN data is missing prior to 1957
But even that is worse than it seems. Yesterday I noted that the upwards slope at Nobbys was the same as the slope at Sydney since 1957. But according to Berkeley Earth, there has been no net warming at Nobby’s since 1970. Which means that Sydney is seeing major UHI effects.
Once again, this looks like major monkey business with the “every month hotter than normal” NOAA GHCN data.