Question:  The 1977 Atlantic hurricane season, had the fewest tropical storms, since the the 1965 Atlantic hurricane season was the first to use the modern-day bounds for an Atlantic hurricane season, which are June 1 to 30 of ?
Sentence (from "1965 Atlantic hurricane season"): The first system, an unnamed tropical storm, developed during the month of June in the Pacific Ocean, while located south of Guatemala.
Relevant evidence: No