Last Month Was the World's Fourth-Hottest July on Record

Indiana and Arkansas, however, experienced record cold.

Global average temperatures in July were the fourth warmest ever, based on records that go back to the late 1800s, according to National Oceanic and Atmospheric Administration data released Monday. Average temperatures in May and June were both the hottest on record.

Here's NOAA on last month's worldwide temps: "The average temperature across the world's land and ocean surfaces during July 2014 was 0.64°C (1.15°F) above the 20th-century average, the fourth highest for July on record. The record  warmest July occurred in 1998, with a temperature that was 0.73°C (1.31°F) higher than average."

NOAA also notes that: "Eight of the 10 warmest Julys have occurred within the past 10 years (2002 also ranks among the 10 warmest)."

According to NOAA and NASA, nine of the 10 warmest years on record have occurred since the year 2000, as page 8 of this January presentation shows.

July was the 353rd consecutive month with a global temperature above last century's average, NOAA said.

The data also reveal region-by-region variation—even within the U.S. "In the U.S., several states in the West had a July temperature among their 10 warmest, while in the Midwest, Indiana and Arkansas each had their coolest July in the 120-year period of record," NOAA said. Overall, 13 states had one of their 10 coolest Julys on record.