SF Just Recorded As Many New COVID Cases In a Day As In Mid-January New cases of COVID-19 are popping up in San Francisco and elsewhere in the Bay Area in what is clearly a fourth wave of the pandemic, and everyone is clearly anxious and exhausted. The latest surge in new cases arrived swiftly over the last two weeks, with the numbers in San Francisco still fairly low in the first days of July. The city was averaging 12.6 new cases per day in the month of June, and that rose to an average of 39 per day in the week after the July Fourth holiday. Now, SF's seven-day average, as of Sunday (with a couple of days of delay in the health department's reporting of numbers), was 147 new cases per day. 218 new infections were tallied in SF on Sunday alone, with 196 the previous day, which compares to days in mid-January when we were in the midst of the winter surge. July 20 also saw 215 new cases.