Ar ôl mis Chwefror arbennig o sych eleni, cafwyd y mis Mawrth gwlypaf ers deugain mlynedd, a Chymru’n cael dwywaith cymaint o law â’r glawiad cyfartalog hirdymor. Roedd hyn yn newyddion da i gronfeydd dŵr, afonydd a chyflenwadau dŵr daear gan fod cyflenwadau oedd o dan bwysau wedi eu hail-lenwi.
A particularly dry February this year was followed by the wettest March in forty years, with Wales experiencing double the long-term average rainfall. This has been good news for reservoirs, rivers and groundwater supply as stocks under pressure have been replenished.