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Ychwanegwyd 12 beit ,  9 mis yn ôl
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Fe gofir hwn fel ''The Great Victorian Blizzard'' ar 18 Ion 1881 ond roedd yn rhan o gyfnod hwy eira neu [[heth]].
::''Continuation of severe frost and easterly gale in Thames estuary resulted in serious flooding. At high water ice floes were within one foot of the top of the terrace balcony of the House of Commons.''<ref>Cylchgrawn Weather rhifyn 51:Llundain</ref></br>
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::Porthmadog: ''an unusual record of a smew [lleian wen] obtained at Porthmadog market on 21 January 1881'' <ref>Birds in Wales: Lovegrove et al. (1994)</ref> </br>
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::24 Ion 1881, ''Abergwyngregyn: attendance very poor owing to the badweather''<ref>Cofnodion yr Aber National School: Archifdy Gwynedd, Caernarfon</ref>
 
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