To climb out of the bottom 20% bracket for 5-year precipitation totals, precipitation in the upcoming water year must be 135-160% of normal in northern California, 160% of normal in the Southeast, and 198% of normal in the San Joaquin Valley.
Based on data from 1981-2010, the vast majority of the Lower 48 experiences its warmest day of the year by the end of August. Where in the U.S. does climate data suggest the warmest day is still to come?
From Alaska's Aleutian Islands to southern California, impacts since May have ranged from record-high concentrations of neurotoxins, to shellfish harvesting bans, to reports of sick and dead ocean life.
Few things are more important to California’s water supply than the water content of the mountain snowpack at the start of the state’s warm season. In the latest round of our Climate Challenge game, experts and participants predicted the water content of the Sierra Nevada snowpack on May 1, 2015. The answer was disturbingly low.