Summary Reports

During November, the average contiguous U.S. temperature was 40.1°F, 1.6°F below the 20th century average.

The global land and ocean temperature departure from average for October 2018 was second highest on record for the month of October.

During October 2018, the average contiguous U.S. temperature was 53.8°F, 0.3°F below the 20th century average.

The global land and ocean temperature departure from average for September 2018 was fourth highest on record for the month of September.

During September 2018, the average contiguous U.S. temperature was 67.8°F, 2.9°F above the 20th century average.

The global land and ocean temperature departure from average for August 2018 was the fifth highest on record for the month of August.

During August 2018, the average contiguous U.S. temperature was 73.6°F, 1.5°F above the 20th century average.

The global land and ocean temperature departure from average for July 2018 was the fourth highest on record for the month of July.

During July 2018, the average contiguous U.S. temperature was 75.5°F, 1.9°F above the 20th century average.

The U.S. Global Change Research Program released the Climate Science Special Report, Volume 1 of the Fourth National Climate Assessment.