A Drier California Seen in New Normals


The differences in the new (1991-2020) rainfall normals in California show a noticeably drier state when compared to the previous period (1981-2010). On average, precipitation for stations in Northern California decreased by 8%, while Central and Southern California stations decreased by 6% and 12% respectively. On a slightly brighter note, in the Northern Sierra Nevada, there was essentially no change, but the Central and Southern Sierra normals fell by 3% and 5%.