What city in the USA has the greatest range in average temperature from winter to summer?
According to 1971-2000 monthly averages from the National Climatic Data Center, Fairbanks, Alaska, has the greatest range in temperature, with a 72.1°F range from winter to summer. The average January temperature is -9.7°F, while the average in July is 62.4°F. In the lower 48, you need to head for Grand Forks, N.D., to experience the biggest temperature swing from January to July. January’s average temperature is 5.3°F and July’s average is 69.4°F, yielding a range of 64.1°F in Grand Forks.