Cob: compost temps

[Darel Henman]

Any of you out there who have aerobic composting, 

I would like to get data about the compost heap's inner temperature
versus the outside the heap ambient temperature. 

Also how long does the compost heap burn at the maximum temperature? 
The temperature probably follows a bell shape, gradually warming,
warmer, warmest, then on down to ambient again.

Thanks,
  Darel