Answer:
Let me take a look
Explanation:
You'd more likely feel colder with the first option, as higher wind speeds are key in making an area cold
Your 10F is going to be a difference, but it won't be low enough to make the second option colder.
Your 15F is higher but it'd stay colder due to higher winds.
If you ever need to figure a question like this, just think about how you'd feel in an area with this type of weather