May 26, 2015
Over 250 years ago, meteorologists used kites to carry thermometers aloft and record upper air observations.
May 21, 2015
According to the May 19 U.S. Drought Monitor, moderate to exceptional drought covers 31.5% of the contiguous U.S.
May 19, 2015
The globally averaged temperature over land and ocean surfaces for April was fourth warmest on record for the month.
May 14, 2015
According to the May 12 U.S. Drought Monitor, moderate to exceptional drought covers 34.6% of the contiguous U.S.
May 11, 2015
The U.S. Virgin Islands is now participating in the Community Collaborative Rain, Hail, and Snow (CoCoRaHS) Network.
May 8, 2015
We’re announcing the release of a new Ozone Climate Data Record with global monthly data from 1979 to 2007.
May 7, 2015
According to the May 5 U.S. Drought Monitor, moderate to exceptional drought covers 37.8% of the contiguous U.S.
May 6, 2015
The April contiguous U.S. average temperature was 53.1°F, 2.1°F above the 20th century average and 17th warmest on record.
May 5, 2015
Scientists compare pairs of ground-based observation networks to analyze temperature and precipitation variations between networks.
April 30, 2015
According to the April 28 U.S. Drought Monitor, moderate to exceptional drought covers 37.4% of the contiguous U.S.
Attention: NCEI will undergo maintenance on Wednesday, June 3 (6:00 AM - 11:30 AM EDT). Access to many web systems will be unavailable during this time.