Ian, we get more clear skies in SA (in normal years) (especially for a coastal capital city) compared to most states I have come to realise. Probably only the WA wheatbelt would be comparable for moderately habitated country i would imagine, ( and the whole of inland 'strailya of course )
sometimes its a curse as much as a blessing
cya from sweatbox city
PS S.O.S send ice! to PO box asi Cummins SA