Jan Null, who runs the private forecasting service Golden Gate Weather Services, said a January dry spell in Northern and Central California is highly likely, based on decades of data. "What we know is because this is a La Niña year, there's a good likelihood that Southern California will end up dry," Jones said. But long-range forecast models from NOAA suggest that Southern California is more likely to be dry than wet, while Central and Northern California have an equal chance of being wet, dry or normal. Weather forecasts beyond 10 days are only accurate half the time, the National Weather Service says. What will the upcoming months hold? It's impossible to know for certain. In short: The precipitation total could quickly drop below normal during a long run of dry days in January or February. The calendar continues to march forward." OK, so what if it stops raining or starts to rain very little, that average statewide precipitation will start to drop. So we've made it through one of those months we still have to see what the other two hold. "Three months amount to half of our average annual precipitation - December, January, February. "Although most of the state at the moment has at least average precipitation or above - the key phrase is 'at the moment,'" she said. qCo45VbM3y- NWS Bay Area January 1, 2022 Here's the daily break down for the official downtown San Francisco rain gauge. This is the 8th wettest start since records began in 1849. Water Year 2021-2022 is off to a great start!ĭowntown San Francisco is at 16.16" versus a normal of 8.30", placing it at 195% of Normal. Jones is encouraged by the numbers, but she emphasized that the water year isn't over and we don't know what the upcoming months will bring.
San Francisco saw 16.16 inches of rain October through December, versus an average of 8.30 inches, making total rainfall for the three-month period 195% of normal. "For example, if you look on a city basis, Sacramento and San Francisco did very well overall, other cities not so much, particularly down in Southern California." "Obviously, not everyone is Mother Nature’s favorite child, so some areas of the state did better than others," Jones said in an interview with SFGATE before the new restrictions were announced. Jones noted that while Northern California saw copious amounts of rain, the southern part saw significantly less.
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