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SWMM-CAT is a utility that adds location-specific climate change adjustments to a Storm Water Management Model (SWMM) project file. Adjustments can be applied on a monthly basis to air temperature, evaporation rates, and precipitation, as well as to the 24-hour design storm at different recurrence intervals.
The most rainfall in 24 hours was 8.28 in (210.3 mm) on September 23, 1882. [23] In winter, on occasion, the city can see snow. Annually, most snow in New York City occurs from December through late March. Snowfall averages 29.8 in (75.7 cm) per year but is highly variable between winter seasons. [4]
They use three levels of warning. The amber warning indicates that a rainfall intensity of 30 millimetres (1.2 in) per hour is expected. The red warning indicates rainfall amounts of 50 millimetres (2.0 in) per hour are anticipated. The black warning indicates that rainfall rates of 70 millimetres (2.8 in) are possible. [19]
Get the New York, NY local weather forecast by the hour and the next 10 days.
Get the New York, NY local weather forecast by the hour and the next 10 days. ... Northeast faces slick roads as coast-to-coast storm arrives bringing rain to record-dry Philadelphia, NYC.
Since Aug. 20, Islip, located on central Long Island, has received only 0.40 of an inch of rain, compared to a historical average of 7.20 inches or 5% of the recent 30-year normal.
The climate of New York City shapes the environment with its cool, wet winters and hot, humid summers with plentiful rainfall all year round. As of 2020, New York City held 44,509 acres of urban tree canopy with 24% of its land covered in trees. [1] [2] As of 2020, the population of New York City numbered 8.8 million human beings. [3]
From April 22 to May 17, 2001, New York City did not record any measurable rainfall. May 18 brought the first bit of rainfall in weeks, with a meager 0.07 of an inch falling.