A lot of people are already keeping a close watch on one tree in particular.
"Cherry blossoms are the marker of spring, that now it's here, the change has happened," said Kim Andrews with the Japan America Society of Greater Philadelphia.
She says their dozens of cherry trees throughout Fairmount Park are looking healthy, and they should be in bloom just in time for their Cherry Blossom Festival, April 6-14.
"Here in Philadelphia, we're waiting in the cold for the cherry trees to bloom," Andrews said. "I think that's one of the reasons Philadelphia has gotten so happy about the cherry trees, because we've had such cold winters lately."
Andrews says the cherry blossoms have a certain magic when the wind starts to blow and the petals go flying like snowflakes. She says that's something everyone should experience at least once.
"The individual blossoms fall from the trees, and it's like being in snow. The ground is covered with a pink blanket. It's one of the most beautiful things I've ever seen here in Philadelphia or anywhere," she said.
The festival includes the Cherry Blossom 10k, which Andrews says gives people a unique view of the trees.
"Through the cherry trees, it runs behind Memorial Hall, around Shifuso, down along the Schuylkill River," she said. "And the cherry trees should be blooming."