On the 45th day, it rained.
Shortly after 10 p.m. Monday, the National Weather Service's Bay Area office trumpeted on Twitter that 0.01 of an inch of rain had been recorded in downtown San Francisco, ending 44 consecutive days of no rain since Jan. 8.
Rain had fallen earlier in the evening in Sonoma and Marin counties, forecasters said. And later Monday night, video footage showed light rain falling and getting the ground wet in North San Jose.
A couple hours after the initial rain tweet, the weather service tweeted more evidence of rain with an 8-second video of a rain-spattered sidewalk and someone holding up a clear rain gauge with a small amount of water and the one-word exclamation - "Yes" - repeated with emphasis - "Yes!"
While the storm is not expected to bring much rain -- and is anticipated to end by Tuesday night -- it will bring a cold front to the area that could reduce temperatures to near-record lows overnights through Friday morning for much of the Bay Area.
For more weather information, check the NBC Bay Area online weather page.