How much does the temperature affect 1\4 mile time?

This past weekend i was at the track for the evening test and tune ( 4-10 pm ) and i noticed my time go down 5/10ths from when i first got there at 4pm. I know some of it was me getting use to the track. It was 87 when i got there and 73 when i did my last run. I know when i got my 13.6 pass in the spring it was around 50 degrees out.

So again how much does the temperature affect our 1\4 mile times?


Laterz
Aceman