As for the cold hardiness of Black Mission, I do not have first hand knowledge yet, but I been assured by other growers and nurseries mature trees are hardy to 15°F.
Here is what Willis Nursery said:
"The Black Mission Fig Tree is one of the most popular figs originating from Spain and brought to North America by Spanish missionaries. It is a medium to large, pear shaped, purplish-black fig. The flesh is strawberry colored with excellent flavor. Many experts consider the Black Mission Fig Tree to be the best all-around variety for the south, north, coast and interior United States. Black Mission Figs ripen Summer to Fall."
And Florida Hill Nursery said:
"Black Mission Fig Tree hybrid was discovered growing near a California monastery over a hundred years ago. Because of this fig's high sugar content, the Tree has become a favorite fruit for eating fresh and drying. Can be grown as a tree or as a shrub. Its a beautiful tree when full grown. AAA+ cold hardy, all around great variety."
Ask me again next year.