July 16, 2012. The month of June globally was the fourth-warmest on record since 1880 and the 328th consecutive month with temperatures above the 20th-century average, the National Oceanic and Atmospheric Administration said. The combined average temperature for land and sea worldwide was 61.03 Fahrenheit (16.13 Celsius), or 1.13 degrees above the average for the 20th century, according to the U.S. agency. Land temperatures were the all-time warmest, averaging 1.93 degree above the 132-year record. Rising temperatures may affect food and energy supplies and markets. A warmer-than-average U.S. winter contributed to lower natural gas prices, and a current heat wave and drought in the Midwest has cut corn harvest projections and driven up prices. Vienna, Austria, reached 99.9 degrees June 30, the highest temperature for the month on record in that country, according to NOAA. The month in the U.K. was 0.5 degree below the long- term average, making it the fourth-coolest June since 1991. NOAA said the 48 contiguous U.S. states had the warmest start to any year on records dating back to 1895.