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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.

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.

California Drought Intensifies

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California Drought Intensifies

The relentless heat that has plagued the western half of the country this summer has ratcheted up California’s terrible drought once again.

Summer Temperature Trends

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Summer Temperature Trends

For most of the nation, summer weather has been changing in ways climate scientists say are consistent with what they’d expect in a warming world.

Summer Precipitation Trends

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Summer Precipitation Trends

When it comes to summertime precip., the wet are getting wetter and the dry are getting drier.

Extreme Precipitation Events are on the Rise

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Extreme Precipitation Events are on the Rise

Heavy downpours have increased in every region of the contiguous states since 1950.

Forecast Temperature Changes by 2100

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Forecast Temperature Changes by 2100

A look at how U.S. temperatures are projected to change, according to the Third National Climate Assessment released May 6, 2014.