New York has woken up to its heaviest snowfall in nearly four years after a winter storm blanketed parts of the US north-east.

New York City's Central Park recorded 4.3 inches (11cm) of snow, its highest since January 2022, while other parts of the state saw up to 7.5 inches of snow, according to the US National Weather Service (NWS).

New York Governor Kathy Hochul declared a state of emergency for over half of the counties in the state ahead of the storm.

On Saturday, more than 900 flights were canceled, primarily in the New York area, and over 8,000 were delayed nationwide, according to FlightAware.

By early Saturday, approximately 6-10 inches of snow had fallen from Syracuse in central New York to Long Island in the southeast of the state.

High snowfall was also recorded in neighboring New Jersey and Connecticut, with the latter seeing 9.1 inches in Fairfield County.

The worst of the storm was over by Saturday morning, but temperatures were below freezing, making road conditions hazardous. The NWS warned of black ice potentially forming on roads and bridges.

The state activated a code blue to bring homeless individuals inside from the cold.

Meanwhile, California is grappling with the consequences of the worst winter storm to hit the southern part of the state in recent memory, resulting in severe flooding.