Our global temperature continued its upward trend last month. August 2019 marked not only Earth’s second warmest August, but also closed out the planet’s second warmest June-August season on record.
According to the State of the Climate Report by NOAA’s National Centers for Environmental Information, Earth’s combined average temperature for August – over both land and sea surfaces – was 61.76°F, which is 1.66°F above the 20th-century average. This August also marked the 416th consecutive month with a global temperature above its long-term norm. That means the last time any month posted a below average reading was December 1984.
The three-month period of June, July, and August – meteorological summer in the northern hemisphere – was also unusually warm. NOAA reports that Earth’s average temperature for the season was 1.67°F above the 20th century average of 60.1°F. That makes it the second warmest such period on record. It is also important to note that nine of the ten warmest June-August periods have all occurred since 2009.
While heat dominated most of the planet this August, some places were particularly warm, including Europe, Africa, and parts of Hawaii and Alaska. For the contiguous US as a whole, August 2019 tied August 1955 as the 13th warmest on record.
These soaring temperatures are largely attributed to the long-term trend of human-caused climate change. As greenhouse gases continue to spew into the atmosphere, global temperatures are expected to continue to rise.
Year to date, the first eight months of 2019 were the third warmest such period of any year on record. At this point, it is very likely that 2019 will finish among the top five warmest years ever recorded. Global temperature records date back to 1880.