The continental U.S. just ended its warmest autumn on record, September through November, during which “record and near-record warmth spanned much of the nation,” said NOAA in a press release.
The average autumn temperature in the U.S. was 56.8 degrees, which is 3.3 degrees above the 20th century average, and the warmest such period in 121 years of record-keeping. The previous record for warmest fall was set in 1963, when the average temperature was 56.6 degrees.
Interestingly, it wasn’t a record-breaking fall for any individual state except Florida, which tied its record-warmest autumn at 75.5 degrees — 3.6 degrees above average. Instead, meteorological autumn featured coast-to-coast warmth across the entire Lower 48. Not a single state clocked an average temperature that was cooler than average last season.
Loved this map when Chris 1st made it. Fall '15 wall-to-wall warm unlike more regional patterns of past Ninos pic.twitter.com/g4nLps2Ql9
— Deke Arndt (@DekeArndt) December 9, 2015
Fourteen states, many in the Midwest and Northeast, logged their second-warmest fall on record in terms of average temperatures. However, six states — North Dakota, Minnesota, Nebraska, Colorado, New Mexico and Florida — logged their warmest fall in terms of minimum temperatures, otherwise known as overnight lows.