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(Unofficial) Record-breaking temperatures across the Globe

(Unofficial) Record-breaking temperature across the Globe


USA animation over the past year
(note this seven-minute movie may take a while to load)


Important Notes:
  • The source of the historical data here is the NCDC GSOD (updated through 2016 as of 16 January 2018).
  • The records are defined here using GMT, with the day resetting at 00GMT (7PM EST;8PM EDT).
  • These records are NOT official and differ from official records that use a longer database and local (not GMT) time.
  • Only cities having an NCDC GSOD recorded history of at least 35 years are shown here.
  • With the additional year of data available (2017), 78 new stations (for a total of 3365) now meet the 35 year minimum record.
  • Of the now 1.23 million daily extremes in the database, 65,129 were set in 2017 (~ 5%).
  • Note that given the relatively short record used here (as small as 35 years), records will almost assuredly be set somewhere every day for the next several decades to centuries.
  • Appreciation to R. Maue, among several others, for feedback.