Overall, our winter was relatively mild this year, with the coldest of temperatures lasting just a few days at a time. Still though, we did have freezing temperatures, and with freezing weather comes frozen pipes.
Hopefully, you did what you could to prevent this problem from affecting your household. For example, one preventive step you might have taken was to open any outdoor faucets used for sprinklers and hoses, and turned off all water flow to these points. After all, the pipes located outside are, understandably, the ones most susceptible to freezing, and leaving the faucets opened helps water to drain from them.