One year after March 2012, which featured a temperature departure at DCA (Reagan National Airport) of +10 degrees, there was a stark contrast with not only D.C., but the majority of the United States experiencing below average temperatures. March 2013 featured temperatures of 0.9 degrees F below the 20th century average. This included a -3 degree F temperature departure locally at DCA. March across the U.S. was the coolest in over 10 years.
- March U.S. Temperature Ranks
Global temperatures were a different story as they registered as the 10th warmest on record. Where was it warmer than average last month you ask? Take a look at the graphic below produced by NOAA's National Cimatic Data Center (NCDC).
- March Temperature Anomalies (Credit: NOAA)
In North America, portions of eastern Canada to Greenland experienced much warmer than average temperatures due to the blocking pattern which kept the U.S. cool. Africa, the Middle East and most of Asia recorded warmer than average temperatures as well as Austrailia. Cooler than normal temperatures were in place across Siberia as well as the majority of Europe.
Interesting Notes from March:
•The UK experienced its coldest March since 1962 (tied for second coldest since records began in 1910), with the average temperature 3.3°C (5.9°F) below the 1981–2010 average. It was also the coolest of any month since December 2010. No region was warmer than average for the the month.
•In Norway, the average March temperature was 3.0°C (5.4°F) below the 1971–2000 average. The largest negative departures of 4°–6°C (7°–11°F) occurred at the higher altitudes of southern Norway and Finnmark plateau, according to Meteorologisk institutt.
•Germany observed its fifth coolest March since records began in 1881 and second coolest in the past 50 years, with the monthly average temperature 4.2°C (7.6°F) below the 1981–2010 average.
•Above-average temperatures continued for Australia during March. The monthly nationally-averaged maximum temperature was 0.66°C (1.18°F) above the 1961–1990 average. The state of Tasmania was record warm (2.86°C / 5.15°F above average), shattering the previous record of +1.94°C (+3.49°F) set in 1971. For the eighth month in a row (since August 2012), every state and territory across the country had an above-average monthly maximum temperature. The nationally-averaged March minimum temperature was 0.82°C (1.47°F) above average, with Victoria, Tasmania, South Australia, and the Northern Territory observing their top 10 warmest Marches on record.
•It was the second warmest March for China, behind 2008, since records began in 1961. According to the Beijing Climate Center, the provinces of Chongqing, Gansu, Guangxi, Guizhou, Hunan, Jiangxi, Ningxia, Qinghai, Shanxi, Shaanxi, Sichuan, Xinjiang, and Yunnan reported record warmth for the month. Northern and eastern Xinjiang, Gansu, far western Inner Mongolia, Shaanxi, western, eastern Sichuan, and Guizhou provinces observed temperatures that were 4°–6°C (7°–11°F) above the 1981–2010 average.