寒がり

寒がりなので、毛布をもう１枚かして下さい。

I'm very sensitive to cold. May I have another blanket?

大寒：１年で最も寒さが厳しくなる日ですが、春がもうすぐ間近に迫っているとも言えます。

Major Cold: It's the day of the year that the cold is most severe, but you could also say that Spring is just coming around the corner.