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NOAA: Warmest Autumn on Record for Continental U.S.

9 Dec 2015, 5:29 pm

The National Oceanic and Atmospheric Administration (NOAA) said on Wednesday that 2015’s autumn was the warmest on record for the continental United States, with all 48 states recording above average temperatures between September through November.

The average temperature across the lower 48 was 56.8°, slightly warmer than the 56.6° reading from the previous record in 1963, but a full 3.3° warmer than the 20th century climatological average of 53.5°. 2-201509-201511

For the state of Florida, this autumn was the warmest on record, based on average temperatures through the three-month timespan. Meteorologists measure seasons on three month increments, with autumn defined as the full months of September, October and November.

For much of the lower 48, December has also started well above average temperature-wise as well due to a big area of high pressure across the eastern half of the country, while Pacific moisture has kept the West Coast active but also relatively warm as well. The Climate Prediction Center’s (CPC) monthly outlook keeps most of the country well above average temperature-wise into January.

For WeatherNation: Meteorologist Chris Bianchi

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