The weather is warming up in Philadelphia, the daffodils are blooming and people are back outside soaking up the sunshine at markets, parks and patio seating.<\/p>\n
Spring is officially here<\/a>.<\/p>\n Here’s everything you need to know about the season, what to expect for weather in the city and more about what marks the first days of spring.<\/p>\n When does spring start 2026? When is the first day of spring?<\/p>\n Technically, spring has two different start dates, astronomical and meteorological.<\/p>\n According to the Old Farmer’s Almanac, <\/a>the astronomical first day of spring<\/a> follows the spring equinox, which fell on March 20 this year.<\/p>\n Meteorologically, the first day of spring is March 1, following annual temperature cycles recognized by weather scientists.<\/p>\n What is the spring equinox? Spring equinox 2026<\/p>\n Per the Old Farmer’s Almanac, the spring equinox typically occurs on March 19, 20 or 21 and marks the astronomical first day of spring in the Northern Hemisphere.<\/p>\n During the equinox, the sun travels south to north across the celestial equator. Other names for the spring equinox include the March equinox and the vernal equinox.<\/p>\n Spring weather 2026. What is the forecast for spring in Philadelphia?<\/p>\n