The season of the year which occurs as the sun approaches the summer solstice, and characterized by increasing temperatures in the mid-latitudes. Customarily, this refers to the months of March, April, and May in the North Hemisphere, and the months of September, October, and November in the Southern Hemisphere. Astronomically, this is the period between the vernal equinox and the summer solstice.
SPRING
Meaning of SPRING in English
Weather and meteorology English vocabulary. Английский словарь погоды и метеорологии . 2012