During the equinox, the Earth’s axis and its orbit line up so that both hemispheres ... 2025 Fall (autumnal equinox): Sept. 22, 2025 Winter (winter solstice): Dec. 21, 2025 The Source: ...

Average spring temperatures in Illinois range from highs of 57 degrees in the north and 67 in the south, to lows of 36 ...

The first day of spring, also known as the vernal equinox, has arrived in the Northern Hemisphere on March 20, 2025.

Equinoxes mark the only time of the year when both the north and south poles are lit by the Sun at the same time. The spring ...