Performance against the both the four and twelve hour decreased marginally against when compared with May, they were the sixth and third lowest on record respectively.
Roedd perfformiad o ran y ddau darged - pedair awr a deuddeg awr - wedi gostwng fymryn o’i gymharu â mis Mai, roeddent y chweched a’r trydydd isaf ar gofnod yn y drefn honno.