The sun makes four quarterly circuits. In April, May, and June, i.e.,
Nisan, Iyar, and Sivan, his circuit is between the mountains, in order
to dissolve the snow; in July, August, and September, i.e., Tamuz, Ab,
and Ellul, his circuit is over the habitable parts of the earth, in
order to ripen the fruits; in October, November, and December, i.e.,
Tishri, Marcheshvan, and Kislev, his circuit is over the seas, to
evaporate the waters; in January, February, and March, i.e., Tebeth,
Shebat, and Adar, his circuit is over the deserts, in order to protect
the seed sown from being scorched.
THE TALMUD, _Psachim_, fol. 94, col. 2.