:::DOWNTOWN SAN FRANCISCO HAS
HAD ITS DRIEST JANUARY-MARCH PERIOD ON RECORD. FROM JANUARY 1
THROUGH MARCH 31...DOWNTOWN SAN FRANCISCO ACCUMULATED 2.31 INCHES
OF PRECIPITATION...ONLY 19 PERCENT OF THE AVERAGE. AVERAGE
RAINFALL IN SAN FRANCISCO FOR THE FIRST THREE MONTHS OF THE YEAR
IS 12.22 INCHES. THIS WAS THE DRIEST JANUARY-MARCH PERIOD IN SAN
FRANCISCO SINCE RAINFALL RECORDS BEGAN IN THE CITY BACK IN 1850.
THE PREVIOUS RECORD WAS 3.20 INCHES SET ALL THE WAY BACK IN 1851.
That is interesting, and this dry spell is historic. Perhaps not as bad as those 800 years ago that caused lakes in the Sierra to dry up with trees growing on their former bottoms, but significant all the same. There was a noticeable lack of lows in the west this winter, at least in the SW, and hardly any of the typical lows that track down the coast and come in over the Sierra or southern California. Arizona actually did well, getting a large amount of rain in late January from an odd low with sub-tropical moisture which tracked in from well southwest of the Baja. Almost like a late summer hurricane sometimes can.