Gallery Section

El Niño’s Winter Impacts

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El Niño’s Winter Impacts

A look at how El Niño influences global weather patterns.

Octobers Are Getting Warmer Across the U.S.

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Octobers Are Getting Warmer Across the U.S.

Even with the big swings of Halloween weather from year to year, Octobers are warming across the U.S.

Frost Free Season is Getting Longer

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Frost Free Season is Getting Longer

All regions of the continental U.S. have seen the frost-free season, defined as the stretch between the last below-32°F reading in the spring and the first in the fall, grow longer.

Climate Change Indicators

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Climate Change Indicators

A graphical look at the top indicators of a warming world.

September Arctic Sea Ice

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September Arctic Sea Ice

2014's Arctic sea ice minimum isn’t going to be as low as the record set in 2012, but it will be well below the 1981-2010 average.

Antarctic Ice: What’s Going On

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Antarctic Ice: What’s Going On

September marks the end of winter when the sea ice that surrounds Antarctica swells to its maximum extent.

Fall Temperature Trends

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Fall Temperature Trends

The big picture is clear: Overall, fall is warming across the U.S, 0.46F per decade since 1970.

Fall Precipitation Trends

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Fall Precipitation Trends

Fall precipitation has changed since the early 1970s, but unlike fall temperatures, the changes form more of a patchwork story.