Lowest Pressu 992.3 mb (23rd)
Highest Pressu 1039.5 mb (25th)

Shouldn't those dates be the opposite way round?

Aye, Paul you're right. I add the dates by hand as I haven't figured out yet
how to get the spreadsheet to give me the actual date alongside the pressure
that the extremes occur, so it is open to me making a balls-up from time to
time.
________________
Nick G
Exe Valley, Devon
50 m amsl