Today also is the day when the earth reaches its farthest point, called aphelion from the Sun.
The difference between the Sun and the earth differs at around 5 million km when the earth is the closet to the furthest.
152098233 km - 147098291 km = 4999942 km
The energy the earth receives would differ by 103.4 to 96.7.
The length of the day, however, depends on the tilt of the earth's axis which has resulted in such a hot day as today.