Within Wales, the mean temperature of Wales has increased a rate of about 0.3 oC over the last century whilst annual precipitation has increased by 3%.
Yng Nghymru mae’r tymheredd cymhedrig wedi cynyddu ar gyfradd o 0.3 oC dros y ganrif ddiwethaf, tra bod y dyddodiad blynyddol wedi codi o 3%.