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Snow at Central Park, winter 2011. New York City averages 49.9 in (1,267 mm) annually. Spring is the wettest season. February is the driest month. Every single month in the city's recorded history has reported some rainfall, showing the variability of the climate. On occasion, tropical systems can drop heavy rainfall.
Winter storms can bring all sorts of precipitation: snow, sleet, hail, freezing rain or even plain old rain. Why so much variety? The answer involves temperature changes as the precipitation falls.
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]
The Great Lakes region of New York sees the highest annual rain and snow amounts in the state of New York, and heavy lake-effect snow is common in both western and central New York in winter. In the hotter months, large, long-lived complexes of thunderstorms can invade the state from points to the west, while tropical cyclones can bring rains ...
Because there must be warm air to produce freezing rain, it generally falls further south than snow. Freezing rain sometimes marks the southern edge of wintry precipitation in weather systems.
The Appalachian Mountains largely shield New York City and Philadelphia from picking up any lake-effect snow, though ocean-effect snows are possible near Cape Cod. [64] The Finger Lakes of New York are long enough for lake-effect precipitation. Lake-effect snow from the Finger Lakes occurs in upstate New York until those lakes freeze over. [65]
Rain forests are characterized by high rainfall, with definitions setting minimum normal annual rainfall between 1,750 and 2,000 mm (69 and 79 in). [98] A tropical savanna is a grassland biome located in semi-arid to semi-humid climate regions of subtropical and tropical latitudes, with rainfall between 750 and 1,270 mm (30 and 50 in) a year.
Unlike hail or sleet, graupel is soft and can be crushed easily in your hand, and is sometimes called "soft hail." It is also usually smaller than hail, with a diameter of around 0.08-0.2 inches.