The weather forecast for June 3rd.

As can be seen from the schematic diagram of the earth's revolution, when the earth is in position A, the latitude of direct sunlight is the equator, which is the vernal equinox in the northern hemisphere, and the date is around March 2 1; When the earth is in position B, the sun shines directly on the tropic of cancer, which is the summer solstice in the northern hemisphere, and the date is around June 22; When the earth is in position C, the latitude of direct sunlight is the equator, which is the autumn equinox in the northern hemisphere, and the date is around September 23rd. When the earth is in position D, the latitude of direct sunlight is tropic of Capricorn, which is the winter solstice in the northern hemisphere, with a date of about 65438+February 22nd.

65438+February 20th lies between the autumnal equinox and the winter solstice, when the earth moves between C and D in the figure.

So choose: C.