"Mother Russia" joke

Back in the old days of the Soviet Union, a Russian couple were walking down the street in Moscow one night when the man felt a drop hit his nose.
'I think it's raining,' he said to his wife.
'No, that felt more like snow to me,' she replied.
'No, I'm sure it was just rain,' he said.
Well, as these things go, they were about to have a major argument about whether it was raining or snowing.
Just then they saw a minor Communist Party official walking towards them.
'Let's not fight about it,' the man said. 'Let's ask Comrade Rudolph whether it's officially raining or snowing.'
As the official approached, the man said, 'Tell us, Comrade Rudolph, is it officially raining or snowing?'
'It's raining, of course,' he replied, and walked on.
But the woman insisted, ‘I know that felt like snow.'
The man quietly replied, 'Rudolph the Red knows rain, dear!'