As the orbital orientation of the Earth changes,the temperature
signatures,oscillating in bands, reflect the orbital position of the
Earth -

http://www.climateprediction.net/ima...ges/annual.gif

Insofar as the relationship between constant axial rotation and
variable orbital motion generates an asymmetry between Mar/Sept and
Sept Mar,the influences on global climate norms should be recognised.

The variable axial tilting Earth to the Sun has no facility to
recognise the global climate asymmetry notwithstanding that the Earth
does not vary its tilt to the Sun.