First released by Ian & Sylvia (1965).
Hit versions by Peter, Paul & Mary (US #91/MOR #13 1965), George Hamilton IV (C&W #9 1966), Oliver (MOR #38 1971), Paul Weller (UK #40 2005).
Also recorded by The Grateful Dead (1965, released 2013), Gordon Lightfoot, writer (1966), Elvis Presley (1972).
From the wiki: “‘Early Morning Rain’ (sometimes ‘Early Mornin’ Rain’) was written by Canadian singer-songwriter Gordon Lightfoot. Lightfoot wrote and composed the song in 1964, but its genesis took root during a 1960 sojourn in Westlake, Los Angeles. Lightfoot sometimes became homesick and would go out to LAX on rainy days to watch the approaching aircraft. The imagery of the flights taking off into the overcast sky was still with him when, in 1964, he was caring for his 5-month-old baby son and he thought, ‘I’ll put him over here in his crib, and I’ll write myself a tune.’