Argentina's national meteorological service (SMN) reported a possible record-high temperature reading of 65 degrees Fahrenheit (18.3 degrees Celsius) on Feb. 6 taken at the Esperanza research base on the northern edge of the Antarctic peninsula.
If the reading holds, then it would set a new historical record for the Antarctic continent with data reaching back to 1961. The previous record of 63.5 degrees F (17.5 degrees C) was set in March 2015, according to SMN.
A World Meteorological Organization (WMO) committee is working on verifying the reading. "Everything we have seen thus far indicates a likely legitimate record but we will of course begin a formal evaluation of the record once we have full data from SMN and on the meteorological conditions surrounding the event," said WMO's Randall Cerveny in a statement on Friday.