WARMTH PRODUCES MORAL LASSITUDE:

Frugal Yankees in New Hampshire hold an average 719 credit score, second only to Minnesota's 724, Wallethub reports. The national average is 695, which means most Americans are just below the 700-score considered good credit, according to WalletHub's findings.

Vermont, Massachusetts, and South Dakota round out the top five with average scores above 700. Alabama at 672, Louisiana at 668, and Mississippi at 662 are the three states with the worst average credit scores.

Patrick A. Cozza, who teaches business at Fairleigh Dickinson University, said the best way to build good credit is to pay your bills on time. Minimizing the use of credit cards is important as well.

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