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Meddai'r meteorolegydd Huw Holland Jones:
:''The weather map for 13 June 1956 shows a NW airstream right from north of Iceland. I would think therefore the report of snow on Snowdon to be genuine.... Snow on our hills in the first 2 weeks of June was not unusual pre- the 1980's.''<ref>Bwletin Llên Natur rhif 22[https://www.llennatur.cymru/Content/Upload/Cylchgrawn22.pdf]</ref>
 
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