It's freaking cold today! 今天冷死了！

另外，和天冷了有关的表达还有：
It's a bit nippy today , you might need a coat.今天有点儿凉了，你可能要穿件大衣。
It was so cold that I was shivering.太冷了，我直发抖。
You must be chilly without a coat on.不穿大衣，你肯定会觉得凉。
We are having a cold snap.我们遭遇了寒流。
The frigid gusts of wind stung their faces.一阵阵寒风吹得他们脸上刺痛。
I'm so cold. Look, I've got goosebumps all over me.太冷了。瞧，我都起了一身鸡皮疙瘩。