It turns out that the temp of freezing water is a pretty complex phenomenon. Scientists have found that water can remain in a liquid state even below its freezing point, a process known as supercooling. It's like water is saying, "Hey, I know I'm supposed to freeze, but I'm just not feeling it today."
But what's really cool is that supercooling can be induced by things like containers and surfaces. For example, if you put water in a smooth container, it can remain liquid even below 32 degrees Fahrenheit. It's like the water is defying gravity - or at least, defying the laws of thermodynamics!