It does in certain spots but seems to coincide with heat that the submerged return pump would be giving off, heater as well.
I put the Da probe,insump thermometer and read Ir within inches of each other and the only notable difference seems to be the DA probe.
While typing this
House :73 F
Tank therm :81 F
Insump therm :82 F
Ir gun :81.5
Da probe :78.6