:. Phoenix Weather In January .:

As some people learned during the Super Bowl, Phoenix Weather In January isn't consistently warm. The Desert Southwest can surprise people, even though temperatures regularly exceed 100°F in the summer, they can drop below freezing at night in the winter. That said, Phoenix Weather in January is normally very pleasant, with highs in the upper 60's or above. As long as you aren't expecting to swim all day, January Phoenix Weather can offer a nice break from colder winter weather.