Significant climate events for January 2013. Graphic: NOAA / NCDC

By Lauren Morello
14 February 2013 (Climate Central) – January was warmer and wetter than average in the contiguous U.S., despite the persistent drought in the nation’s heartland, the National Oceanic and Atmospheric Administration said Thursday. The average temperature in the lower 48 states reached 32.0°F last month. At 1.6°F above the 20th century average, January 2013 ties 1958 as the 39th-warmest January on record. That was still warm enough to make February 2012-to-January 2013 the warmest February-to-January period since record-keeping began in 1880, NOAA said in its monthly State of the Climate report. The lower 48 states were slightly wetter than usual, with an average of 2.36 inches falling in January, 0.14 inch above the long-term average. But that average figure masks a sharp divide between the eastern and western halves of the country. The West Coast, the central Rockies and portions of the Northern Plains, Southeast and Northeast were drier than normal, NOAA said. California, Connecticut and Florida each recorded one of its 10 driest Januarys. But much of the East Coast was wetter than average last month, from the Southern Plains through the Mid-Atlantic states. Stormy conditions in Louisiana, Mississippi, Tennessee, Michigan and Virginia produced one of the 10 wettest Januarys ever in each of those states. [more]

NOAA: February 2012 to January 2013 Warmest on Record