Seasonal Fluctuations in Temperature on a Planet With Axial Tilt

No Continents and Oceans (Single Surface Type) (e.g., Mars)

	Number of Hours of Daylight Summer Solstice	Winter Solstice	Radiation Intensity	Amt Rad Passing Through Top Making it To Surface
Poles	24 hours	0 hours	Weak	30% (Low Sun Angle)
Equator	12 hours	12 hours	Strong	60% (High Sun Angle)

Conclusions: if the earth is considered to be a uniform ball all of one substance then:

(1) On average, the earth's suface and the atmosphere are warmer at the Equator than at the Poles;

(2) On average, there is a tremendous fluctuation from winter to summer temperatures in the polar regions and none at all in the equatorial regions. No seasons at the equator.