a snow day 前用in还是用on?

a snow day 前用in还是用on? a rainy day前用什么介词?是on a rainy day 还是 in a rainy day? in a cold day 还是 on a cold day 用in 还是 on如题 he came here in a hurry on a_____(snow)day. On a such hazy day?还是用In? teachers' day前边用in还是on a hot summer day 前面用in还是on就是是用in a hot summer day还是on a hot summer day 月份前用in还是on? Sunday morning前用in还是on? 英语语法：saturdayafternoon前用in还是on free time 前用ON还是IN? 英语语法：saturdaymorning前用on还是in free time 前用ON还是IN? pavement前用介词on 还是in? Afternoon前用in还是on Thanksgiving Day(感恩节)前到底用at 还是on 交通工具前介词的用法on a train,on a bus,in a boat,in a car,是这么用吗,boat前用on 还是in in a rainy day还是on a rainy day?