This is not exactly what you are looking for but perhaps it will help you in some fashion nonetheless:

To my knowledge precise data for this question in England only really begins after the period you specified. In the early thirteenth century it was mandated that tenants who held land from the Crown needed to be registered, and that in the event of their deaths the name of their heir was to be recorded. Marianne Joncker has conducted a mathematical analysis of these records and has concluded that the life expectancy for men born in the late thirteenth century who reached the age of 25 between 1305-1325 was 26.9 additional years. Marianne Joncker, "Estimation of the Life Expectancy of Tenants in the Middle Ages" in Mathematical Population Studies 16/2 (April, 2009), 145.

Other earlier studies have also come to different conclusions through the analysis of physical remains. In Istvan Kiszely's The Anthropology of the Lombards an assessment of 870 skeletons resulted in a figure of 34 years 8 months for men and 34 years 2 months for women. These findings were consequently problematized by the lack of children's remains and revised down to 24 years 8 months and 24 years 3 months respectively. Consult Paul Edward Dutton, "Beyond the Topos of Senescence: The Political Problems of Ages Carolingian Rulers" in Aging and Aged in Medieval Europe ed. Michael Sheehan (Toronto: PIMS, 1990).

This question was of interest to medieval scholars and contemporaries did speculate as to the kinds of factors that informed it. Albertus Magnus studied the question of average lifespan relative to biological sex in depth during the mid-thirteenth century. He came to the conclusion that men live longer than women naturaliter while women live longer by per accidens. Essentially men would naturally live longer than women due to the comparative perfection of their bodies, however through certain accidental and/or behavioural factors women can often hope to outlive men despite high rates of mortality during childbirth.

Herlihy characterized his explanation for why this is the case as follows: "sexual intercourse is less demanding on women than on men; women menstruation flushes impurities from women's bodies; and women work less, and for that reason are not so much consumed." David Herlihy, Women, Family and Society in Medieval Europe: Historical Essays, 1978-1991 (Providence: Berghan Books, 1995), 59.