It’s been about 13 years since San Diego received as much rain as it recorded on Monday, when the region was clobbered by an unexpectedly large storm. San Diego International Airport recorded 2.34” of rain on Monday — a figure that’s higher than the 2.19” that the city averages for the entire month of February. The National Weather Service says the airport hasn’t received that much rain since October 27, 2004, which it got 2.70”. “We got a real deluge,” said Steve Harrison, a weather service forecaster.