The 2015 calendar year is on track to become the warmest on record, and October weather helped solidify that trend.
“This was the warmest October on record,” says Ahira Sánchez-Lugo, a climate scientist at NOAA’s National Centers for Environmental Information.
Land temperatures were 2.39° F warmer than normal, and ocean temperatures were 1.53° F warmer than normal. In the U.S., the eastern half of the country was warmer than average, the western half of the country were much warmer on average, with parts of California and the Pacific Northwest seeing their warmest October on record.
Elsewhere in the world, the northern third of South America, southern half of Africa, plus parts of India, Indonesia and Australia saw record warm Octobers. A few geographies bucked the trend with cooler-than-normal October weather, including Argentina, western Russia and Japan.
Year-to-date, 2015 is trending to be the hottest year on record, Sánchez-Lugo notes.
“The only way it would not break the record is if November and December have a temperature departure of zero,” she says. “We’re pretty confident 2015 will be the warmest year on record.”
For more information, visit www.climate.gov.