Your Strength score increases by 1.

Your Constitution score increases by 1.

Your human genes have changed your agespan, most Winter Wolfborn live anywhere from 75 years to 125 years

Because your Human parent raised you your alignment will most likely reflect theirs but it could be any as can a humans

Your Wolvish blood has made you grow taller than a normal human, Winter Wolfborn can range anywhere from 5'10 to 8'0.

Your size is Medium

Your base walking speed is 35 feet

You can use your action to exhale a blast of icy cold. When you use your breath weapon, each creature in the area of the exhalation must make a Dexterity saving throw. (10ft Cone) The DC for this saving throw equals 8 + your Constitution modifier + your proficiency bonus. A creature takes 2d6 cold damage on a failed save, and half as much damage on a successful one. The damage increases to 3d6 at 6th level, 4d6 at 11th level, and 5d6 at 16th level. After you use your breath weapon, you can’t use it again until you complete a short or long rest.

You are resistant to Cold damage

You can speak read and write Common.

You can speak Winter Wolf but they have no written language.