![]() ![]() (National Weather Service) Below are the National. 27 shows 1-2 inches in green, 2-4 inches in yellow, 4-6 inches in orange, and above 6 in red and pink. Where we have real time data (time stamped at each. Those differences are compounded by a statewide gradient of decreasing rainfall from north to south, since most storms come from the northern Pacific and shed water as they move south. A map of 7-day rainfall totals as of Dec. Below is link to a HEC-DSS file that contains much of our rainfall data. The bottom line is that Mount Tamalpais and the Santa Cruz Mountains may get more than 45 inches, Petaluma and San Francisco 23 inches, and Livermore and Tracy 15 or fewer. Once all that rain comes down, there’s not much left on the other side of the Coast Range, where rain shadows leave cities like San Jose with only 16 to 20 inches of rain. Current and future radar maps for assessing areas of precipitation, type, and intensity. ![]() This is known as orographic precipitation, and it means that Kentfield (25 miles east of the light-house) gets 48 inches of rain per year from the same storms. When air cools, it can’t hold as much moisture, so the water falls as rain. Current conditions and forecasts including 7 day outlook, daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill (when. As storm clouds move inland and begin to rise over the coastal mountains, the air cools. Average annual rainfall there is only 15 inches. While much of the western United States continues to suffer from a punishing drought, the Bay Area was close to its normal total precipitation over the last year, state officials said Monday. The distribution and amount of rain is similarly all over the proverbial map.Īt the Point Reyes Lighthouse, sticking way out into the ocean, you might expect rain to be plentiful. Folks at the beach are freezing as the fog lingers in San Francisco’s Sunset District while others are sweltering in the bright sun in Livermore. Most of these rain gauges are located in the Santa Cruz Mountains in Santa Cruz County in central California. The Bay Area is well known for its many microclimates. Click here to go straight to the latest rainfall totals. Q: Which spot in the Bay Area gets the most yearly average rainfall and which spot gets the least? Why? Ī: Nearly all the precipitation we receive comes between November and April in the form of rain from moisture-bearing clouds off the Pacific. SFGate - An atmospheric river continued its slow push across the San Francisco Bay Area early Monday morning, delivering soaking rain to a drought-ridden. ![]()
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