Starting in July, when you hear that a day was hotter, or colder, or rainier than normal, that normal will be a little different from what it was in the past.

Above-average sea surface temperatures, a natural cycle of increased hurricane activity, and a fading La Nina have influenced the 2011 Atlantic hurricane outlook.

Deep snow that fell across the Great Plains and the Northeast in late January and early February is the latest installment in the second very wintry winter in a row for the eastern U.S.

More than half of the United States experienced heat, drought, or flooding during 2011, demonstrating the power and momentum of climate extremes.

 Researchers at NOAA’s National Climatic Data Center collaborate with tropical cyclone centers and scientific agencies around the world to assemble and maintain the International Best Track Archive for Climate Stewardship (IBTrACS), an inventory of tropical cyclones.

This OSU webinar will provide an overview of how interested stakeholders can obtain information from NOAA’s climate service offices.

This is the first of nine lessons in the "Visualizing and Understanding the Science of Climate Change" website. This lesson is an introduction to Earth's climate and covers key principles regarding Earth's unique climate, atmosphere, and regional and temporal climate differences.

This webinar will examine how variations in the tropical Pacific can affect high-latitude regions such as Alaska.

If the climate conditions that indicate ENSO are best measured as seasonal averages, will scientists wait for conditions to persist three months before declaring El Niño underway?

WMO Statement on the Status of the Global Climate in 2013 Report Cover

WMO Releases Annual Status of the Global Climate Report

The dramatic impact of climate variability and climate change continued to be felt all over the world throughout 2013.The World Meteorological Organization statement on the status of the global climate in 2013 provides a snapshot of global and regional trends in weather and climate over the past year and highlights some of the year’s most significant extreme events.

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