January hottest year ever update: Contiguous U.S. so blistering hot at 0 degrees C. that only 38 Januarys were warmer; ties January temperature of 1958, when Eisenhower was president

NOAA: Average temperature of the USA in January at freezing | Watts Up With That?

The average temperature for the contiguous U.S. during January was 32.0°F, 1.6°F above the 20th century average, tying with 1958 as the 39th warmest January on record.