Actually, stars are not all white. The color of a star actually depends on the temperature of that star. Cooler stars radiate infrared light, making â¦ them look red. While hotter stars radiate ultraviolet light, making them look blue.
September 2016 was warmer than normal with. below normal precipitation at Duluth MN. The average temperature for September was 59.9 degrees which was 4.3 degrees above the normal of 55.6 degrees making this tied for the 10th warmest September in station history. The highest temperature for the month was 80 degrees on the 5th.
Lake Superior is renowned for its cold temperatures, rough seas, fog, and sudden squalls. Boaters and paddlers should monitor marine weather forecasts and be constantly alert to changing conditions. Average daytime high temperatures range from 60 degrees Fahrenheit in May, to the upper 80s in mid-summer, to the mid-60s in September. Average lows vary from 40 degrees in May, to the upper 50s in mid-summer, to 50 degrees in September. Average water temperatures in May and June are only in the 40s. Even in late summer, surface temperatures rarely exceed 60 degrees, except in protected bays. Average summer winds blow at from 5 to 20 knots with waves of from one to four feet. Winds of 30 to 40 knots and 6 to 12 foot seas are possible. Check for an up-to-date weather on Lake Superior. Near Shore Marine Weather Forecast, within 5 miles of shore. Offshore Marine Weather Forecast, beyond 5 miles from shore