Precipitation compared with a 1991-2020 average. Two maps of California side by side. Left map shows the state mostly in shades of gray and tan, representing below-average precipitation.

Map of California and surrounding areas showing the difference between precipitation amounts over the last 30 days and average precipitation during the same period from 1981-2010. Precipitation ...

A map from the NWS Climate Prediction Center shows the precipitation outlook for the week ending in December 22, the start of Christmas week. Many states are expecting below-average precipitation.

Highly resolved precipitation maps based on AI Date: December 13, 2023 ... Researchers expect that increasing average temperatures will cause extreme precipitation events to further increase.