Flowering is occurring months early.
Observation: Chinese Magnolia started flowering in July - normally happened in September/October.
LEO says: "Magnolia × soulangeana (saucer magnolia) is a hybrid plant in the genus Magnolia and family Magnoliaceae. It is a deciduous tree with large, early-blooming flowers in various shades of white, pink, and purple. It is one of the most commonly used magnolias in horticulture, being widely planted in the British Isles, especially in the south of England; and in the United States, especially the east and west coasts." For more see Wikipedia article Magnolia × soulangeana.
Media:
Climate Central – As the Climate Warms, Magnolias Move North, by Bruce Dorminey.
Resources:
Nature's Notebook – Note also that magnolias including Magnolia stellata and Magnolia grandiflora are species that are topics for phenology networks in the United States. Source: USA National Phenology Network