Prolonged Period of Hotter Than Average Weather
This page is the CodyCross answer for the clue below from The 70's, Group 334, Puzzle 1 (Hot Wheels and Barbie).
Question is: Prolonged Period of Hotter Than Average Weather
and the answer is: HEATWAVE
Word Meaning:
HEAT WAVE — (idiomatic) A period of exceptionally hot weather.
Definitions from Wiktionary.