New York City is bracing for a spring season characterized by volatile weather and significant temperature fluctuations. The vernal equinox, marking the astronomical beginning of spring, promises longer days, but also signals a period of unpredictable weather patterns. Residents are advised to prepare for dramatic temperature shifts, exemplified by a recent instance where temperatures plummeted from a high of 80°F (27°C) to the 40s°F (4-9°C) due to a cold front.