The hot season; the dog-days.
1873. The heated term was at its worst, and after ten days in Omaha I once more took my pilgrim staff for the country, following out the California Trail.J. H. Beadle, The Undeveloped West, p. 65 (Phila., &c.).
1878. The average of the heated term, one day with another, is there recorded at eighty-four degrees [at Houston, Texas].J. H. Beadle, Western Wilds, p. 431.