What was the weather on January 1 1975?

Answer 1

Without a location that cannot be answered. In different parts of the world the weather would be different. In some places it would have been wet and in other places it would have been sunny and other parts would have had other kinds of weather. Some places would have been hot, some would have been cold. So on the 1st of January 1975, just about all kinds of weather would have been found around the world.

Answer 2

I don't have access to historical weather data for specific dates. You can check weather archives or contact a meteorological service for that information.