Earth makes its closest approach to sun in its elliptical orbit for the year. Earth is 91.4 million miles or 14,70,99,761 km away from the sun. The Point in the earth's orbit where it is closest to the sun is called Perihelion.
So why is it still winter season?
It's not the earth's distance to the sun that causes changes in seasons. But the tilt of earth's axis. On July 4, Earth will be at the most distant point in its orbit called Aphelion.
Earth will be 94.5 million miles or 15,21,04,285 km away from the sun.