from Paul Blank, Napa RCD Environmental Scientist

March brought 11 storms and sixteen days of measurable rainfall to the Napa Valley. Rain totals observed at the County ALERT monitoring stations (napa.onerain.com) were well above average for the month, ranging between 9.0 inches in the City of Napa and 15.9 inches at Mt. Veeder. These totals represent approximately 35% of mean annual precipitation. On average, we get 13% during the month of March. On the season, we have now received 125% of our annual rainfall, officially making 2022-23 an above-average water year. Seasonal totals range between 33.4 and 56.1 inches.

graph of rainfall totals in march 2023

See February’s Rainfall Summary HERE

See January’s Rainfall Summary HERE