I think on the 20th or 21st Feb, the thermometer hit 26 degrees in New York hitting a new record.
The temp here was 14 degrees last Friday, and 0 degrees on the Saturday, which is a pretty extreme by UK standards, but this variation seems to happen quite regularly in the eastern US. If you lived there, then you'd need to check the weather forecast every night before travelling to work the next day, to ensure you were suitably dressed with a decent coat, hat and gloves etc.