An average of 159 red calls were made per day in March, the same as the previous month, and still the fourth highest on record.
Ar gyfartaledd, roedd 159 o alwadau coch yn cael eu gwneud bob dydd ym mis Mawrth, sef yr un faint â’r mis blaenorol ond y pedwerydd ffigur uchaf ar gofnod.