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May 18, 2017 May rainfall has been abundant and is averaging generally 1 to 2 inches above average in southern New York, Pennsylvania, and New Jersey. Temperatures have been mostly 1 to 3 degrees below normal. Over the past 90 days, precipitation has been 2 to over 4 inches above average in southern New York, northern Pennsylvania, and even much of the New Jersey coastal area. Amounts have been near normal or an inch or 2 above elsewhere.

Current (May 18) streamflow data from the U.S. Geological Survey shows that streamflows are near normal. Groundwater levels are near or above normal.

The state of Pennsylvania has dropped the "Drought Watch" for parts of the southeast quarter of the state. . The state of New Jersey has a "Drought Warning" in effect for Hunterdon and Somerset counties. .

The weather outlook through the end of May calls for near average rainfall to start the period but then above average rainfall afterwards. Temperatures are expected to start off above or much above average but gradually cool to below average by the end of the month. The NWS Climate Prediction Center's 30 day outlook for June as well as the 90 day outlook for June through August calls for near average rainfall and above average temperatures.

The outlook for water resources and supplies is very good for southern New York as well as northern parts of Pennsylvania. The outlook is good for the state of New Jersey and for the rest of Pennsylvania. Improvement has been occurring and is expected to continue for the next couple of weeks as a result of recent and expected rainfall. After this, change will be slow to occur during the summer months.


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U.S. Geological Survey Real Time Data

Advanced Hydrologic Prediction Service (AHPS)

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Drought Information