Focusing on Tenderloin district, since it has the highest amount of total structure fires, we can visually see how many calls were made each day. [Data Source: SF OpenData]
We can understand that that number of calls increases and decreases through out the month. There are a couple of days the calls reach zero but there are also three separate days where the number of calls grew above 20. The particular day that is interesting is Christmas Eve - the 24th. After doing some research, the Data Queens found that there was not one significant fire on the 24th just a multitude of fires.