For countries in the Northern Hemisphere (such as the United States, Canada, Europe, and most of Asia), spring generally falls during the transition from March to June.
The question “Which are the spring months?” is a Rorschach test for how you view time. If you see time as a celestial clock, you choose the equinox to solstice. If you see it as a data set, you choose March–May. If you see it as a living system, you watch for the first bud. which are spring months
Phenological spring is collapsing. Due to climate change, the biological calendar is shifting at an average rate of 2.5 to 3 days per decade earlier in temperate zones. In 2023, Washington D.C.’s cherry blossoms reached peak bloom on March 23—a full week earlier than the 1921–2020 average. This means that the months of spring are no longer fixed even by nature . What was April warmth 50 years ago is now March warmth. Phenologically, March has begun to act like April, and April like May. For countries in the Northern Hemisphere (such as
Due to the tilt of the Earth's axis, the seasons are reversed in the Southern Hemisphere (including Australia, New Zealand, South America, and Southern Africa). If you see it as a data set, you choose March–May