大家帮我看看,这句话有没有语病,有的话顺便提出来

有,猜测你想表达的意思是：这里半年的天气寒冷,并且经常下雪,有时候一晚上下雪的厚度能达到23英尺.翻译如下：
It's cold in half a year. And it snows heavily often. For instance, the thickness of one night snowing may reach 23 feet.