Zonal Mean temperatures
I use data from Clifford (various dates, but 1993 is a good year).
YOu will also find that "Mars" U. Ariz. Press. 1991 is an excellent reference for everything Mars-related from the pre-Pathfinder era.
Clifford & Parker 2001 quote 218 K as equatorial annual mean temp, 154 K as polar mean, both these +- 5K. In the same paper, they give means for 30 degrees as 211 K and 60 degrees as 179 K. I use a global mean temp of 213 K, corresponding to these figures.
One of the oddities of Mars is a very flat mean temperature profile across temperate and equatorial regions, and a sudden dive into polar regions. As a consequence, the equatorial mean temp is only ~5K greater than global mean temp.