Talk about changeable spring weather!
Yeah - I chickened out of going to the pool on opening day, because I'm not as intrepid as the US Postal Service.
The colder it is out of the water, the warmer it feels in the water.
That's why people who get lost in the snow (and die) are usually found in creeks. Once l was very cold on a long trip in the snow when l stepped in a creek. The tenperature was probably just above freezing but it felt warm and l didn't want to get out.
That is a remarkable fact ( people standing in creeks) that I havent heard of before. AP = place of learning!