NCDC Releases May 2013 U.S. Climate Report
The average temperature for the contiguous United States during the spring season (March–May) was 50.5°F, 0.5°F below the 20th century average, making it the 38th coolest spring on record. The May temperature for the contiguous United States was 61.0°F, 0.9°F above the 20th century average and the 40th warmest May on record.
The total spring precipitation averaged across the contiguous United States was 7.92 inches, 0.21 inch above the 20th century average. May contributed 3.34 inches of rain to the spring precipitation total, and was the 17th wettest May on record. Drought conditions continued to improve for parts of the Plains, but worsened in the West.
This monthly summary from NOAA’s National Climatic Data Center is part of the suite of climate services NOAA provides to government, business, academia, and the public to support informed decision-making.