Here's what the rose bush outside my front door looked like at the beginning of last week:
In other words, it was pretty darn warm for the Northeast at the end of November. November 30 it was warmer in northwestern Pennsylvania than it was in southern Arizona: at my house, the high was 67 degrees, while at my parents' house in Tucson, the high was 45 degrees.
Here's what my rose bush like at the end of last week:
In other words, it got cold.