We had fine weather throughout our Mexican cruise too. The sky was deep blue during most every day from Long Beach to Puerto Vallarta, Mazatlan, and Cabo San Lucas. I must admit it was nice returning to hear the weather in Vancouver had been awful while we were away. Does that make me a bad person? Apparently, there had even been snow here during our trip.
I've had to rely on the fickleness of people's poor memories. It is really easy to locate weather forecasts for upcoming days but nearly impossible to find any account of the history of recent weather.