Aggregating Multiple Entities Into a Single Averaged Graph

Hi everyone,

I have the following current setup:

I’m trying to compare the outside temperature to the tire pressure in all 4 tires of my car. However, if I had 4 queries for my 4 car tires, there will be 4 lines for the pressure to compare to 1 temperature line. Is there a way I can “average” the value at each timestamp into a single data point, and thus a single line so I can compare 1 line to 1 line?