When I … to Riga, it was cold, a strong northern wind … and it … for a fortnight.

 

1.came, blew, was raining

2.had come, had been blowing, had rained

3.came, was blowing, had been raining

4.was coming, had blown, was raining

5.came, blew, rained

came, was blowing, had been raining 

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