WASHINGTON (AP) -- Planet Earth continues to simmer, with this year's spring the seventh warmest on record.
The world average land and sea temperature for spring was 56.7 degrees Fahrenheit (13.7 Celsius), 0.94 degree F (0.52 C) above the mean for the period since record keeping began in 1880.
For weather and climate purpose the official spring is the months of March, April and May.
The National Climatic Data Center said the global land surface temperature for spring was 1.87 degrees F (1.04 C) above the 20th century mean of 46.4 degrees F (8.0 C) and tied with 2000 as third warmest.
The global ocean surface temperature for spring was 0.59 degrees F (0.33 C) above the 20th century mean of 61.0 degrees F (13.1 C) and ranked 10th warmest.
The data center is part of the National Oceanic and Atmospheric Administration.