Earth's average surface temperature is about 288 K. If we had a hypothetical exoplanet with a surface temperature of 300 K, this would be about 4% higher than Earth's.
Because we say Earth radii and Earth masses, would we refer to this as 1.04 Earth temperatures? Or, how about 1.04 Earth's temperature? $1.04 \cdot T_⊕$? Is there a standard in astronomy to use?