Observed Changes in Annual Precipitation in US

NOAA’s National Climate Data, 2008

Guess what?  Climate change is likely already impacting precipitation in Ohio; annual precipitation in Ohio increased by 10 to 20 percent between 1958 and 2008.  This trend is predicted to continue and accelerate with increases in climate change drivers (e.g. emissions).

In the future, total precipitation in Ohio is projected to increase in winter and spring.  The intensity of precipitation events is also projected to increase throughout the year.  These changes are related to increases in evaporation from higher temperatures, as well as an increase the atmosphere’s capacity to store water vapor, which is linked to temperature increases.

Projected Seasonal Changes in Precipitation in the US by 2099

USGCRP, 2009


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