The soviet union had a very high population/workforce and also scored mass production and had a powerful military but that all didn't mean it had a powerful economy as there was higher unequal opportunities seen in its income per head(GDP per capita) as compared to that of the United States of America. The soviet union's per capita when compared to that of the United states from 1913- 2005 grow rather steadily but a lot lower than U.S figures.
At night it takes longer for the water to cool and then it takes longer for the water to heat up in the daytime. Just because of the way the wind is blowing and such