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April 20, 2018 April precipitation has been normal or 1 1/2 inches or so above in southern New York, Pennsylvania, and New Jersey. April has been quite cool with temperatures ranging from 2 to over 5 degrees below normal. Over the past 90 days, precipitation has been normal to 3 inches above in southern New York and most of Pennsylvania. Parts of southeastern Pennsylvania and New Jersey are running 3 to 6 inches above.

An inch or so of snow is on the ground in southern New York and parts of northern Pennsylvania but is not hydrologically significant.

Current (April 20) data from the U.S. Geological Survey shows that streamflows are above or much above normal. Groundwater levels are mostly above normal.

The weather outlook into early May calls for near or below average precipitation and temperatures. The NWS Climate Prediction Center's 30 day outlook for May as well as the 90 day outlook for May through July calls for above average precipitation and temperatures.

The outlook for water resources and supplies is good or very good for south-central New York, Pennsylvania, and New Jersey and these conditions are expected for the next few weeks.


Snow Pack Information

Precipitation Information

Extended Outlooks

Winter/Spring Flood Outlook

The first outlook is scheduled to be released on January 4, 2018.

Current Hydrologic Conditions

U.S. Geological Survey Real Time Data

Advanced Hydrologic Prediction Service (AHPS)

Cooperating Agencies


Drought Information