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Blog Category: National Climatic Data Center

NOAA: U.S. Temperature and Precipitation in October Were Near Average

Map of U.S. showing significant areas of weather activity in October 2012

Sandy breaks records in East as severe drought continues in West, Great Plains

According to NOAA’s National Climatic Data Center scientists, the average temperature for the contiguous U.S. during October was 53.9°F, 0.3°F below the long-term average. This ends a 16-month streak of above-average temperatures for the Lower 48 that began in June 2011.

The October nationally averaged precipitation total of 2.19 inches was slightly above the long-term average. The Northwest, Midwest, and Northeast were wetter than average, while below-average precipitation was observed across the Southern Rockies and the Central and Southern Plains. As of October 30, 60.2 percent of the contiguous U.S. was experiencing drought conditions with the most severe conditions in the Great Plains. Full report

U.S. Experiences Second-Warmest May, Hottest Spring on Record

Map of U.S. with significant weather events for April-May

Lower 48 also experienced record warm year-to-date and twelve-month periods

The average temperature for the contiguous U.S. during May was 64.3°F, 3.3°F above the long-term average, making it the second-warmest May on record. The month's high temperatures also contributed to the warmest spring, warmest year-to-date, and warmest 12-month period the nation has experienced since recordkeeping began in 1895.

The spring season's (March-May) nationally-averaged temperature was 57.1°F, 5.2°F above the 1901-2000 long-term average, surpassing the previous warmest spring (1910) by 2.0°F.

Precipitation totals across the country were mixed during May, with the nation as a whole being drier than average. The nationally-averaged precipitation total of 2.51 inches was 0.36 inch below average. The coastal Southeast received some drought relief when Tropical Storm Beryl brought heavy rains to the region late in the month. | See the full Climate Report

NOAA: Globe Had Eighth-Warmest August on Record

Image of Earth from space

The globe had its eighth-warmest August since record keeping began in 1880, while June through August was the seventh warmest such period on record. The Arctic sea ice extent was the second-smallest for August on record at 28 percent below average.

Global Temperature Highlights: August

  • The combined global land and ocean average surface temperature for August 2011 was the eighth-warmest on record.
  • Warmer-than-average conditions occurred across most of North America and the northern half of South America, southern Greenland, eastern Russia, Mongolia, most of Europe, northern Africa to Southwest Asia and southern Australia. Cooler-than-average regions included western Russia, Alaska, Chile, Argentina and Uruguay.
  • The August global ocean surface temperature was 0.79 F (0.44 C) above the 20th century average of 61.4 F (16.4 C), making it the 12th-warmest August on record.
  • Australia’s August 2011 average maximum temperature was the fifth-warmest August in its 62-year period of record. The state of Tasmania had its all-time warmest August maximum and minimum temperatures on record. 

NOAA's National Climatic Data Center provides a monthly analysis of global climate data for government, community and business leaders to help make informed decisions.   NOAA release  |  Graphic