On any given day or any given month, somebody somewhere– maybe even where you live– experiences colder-than-average temperature, even though the globe as a whole is warmer than average.

Winter storms in February improved drought in the Southeast and Midwest, but well below average precipitation in parts of the West in recent months has worsened drought in other places.

As the whole ocean gets warmer, NOAA scientists must redefine what they consider “average” temperature in the central tropical Pacific, where they keep watch for El Niño and La Niña.