tags: NYC, Upper East Side, Manhattan, flowers, nature, image of the day Median. 83rd and Park Avenue (Upper East Side of Manhattan). Image: GrrlScientist, 26 April 2009 [larger view]. In the wee hours of Saturday, the temperature was somewhere close to 38 degrees Fahrenheit at my apartment, then, hours later, it reached 88 degrees -- a 50 degree difference! Today, it is predicted to reach 90 degrees in Manhattan, so I had to celebrate by roaming around the Park Avenue median on the Upper East Side, photographing the blossoms.