• Snowiest place: Delaware, averages 241.5" per winter
• Most snow in a single storm: 46.1", Calumet, January 15-20, 1950
• Most snow in one month: 129.3" at Delaware, December 1989
• Most snow in one winter: 391.9" at Delaware, 1978-1979
• Greatest depth of snow on ground: 80" at Marquette Airport, February 16, 1971

COLDEST:

• Coldest place in Michigan: Van Riper Park, near Champion, annual average 38.8 degrees
• Coldest winter nights: Bergland, average January daily minimum - 1 degrees
• Coldest ever: unofficial and unverified -55 degrees was reported at Fort Brady near Sault Ste. Marie, February 13 and 14, 1875.
• Coldest month: January 1912, average -7.2 degrees at Watersmeet
• Coldest day: -21 degrees daytime maximum at Ironwood, January 17, 1982.

AURORA BOREALIS OR NORTHERN LIGHTS:

• This is a luminous phenomenon that consists of streamers or arches of light appearing in the upper atmosphere of a planet's polar regions and is caused by the emission of light from atoms excited by electrons accelerated along the planet's magnetic field lines.
• 30 nights a year in northern Michigan
• Commonly seen in March, April, September and October

LAKE SUPERIOR:

• Lake Superior is the deepest of the Great Lakes: 1,335 feet deep off of Munising. Below the surface the temperature remains 39 degrees year round. Lake Superior is 31,820 sq. miles at an elevation of 602 feet.
• A seiche is defined as an oscillation of the surface of a lake or landlocked sea that varies in period from a few minutes to several hours. In 1834 a seiche hit Sault Ste. Marie and on June 18, 1939 a seiche traveled from L'Anse to Munising. Others hit Sault Ste. Marie on May 2, 1952 and Keweenaw Bay on June 30, 1968.
• 1986- peak level for the Great Lakes
• 1926- due to dry weather Lake Superior drops to 1.8' below normal in April, its lowest level on record.
• On occasions Lake Superior has kept its ice into June (1972) and July (1876).
• 1963- late February, Lake Superior is iced up except for an acre or two.
• 1972- Lake Superior is reported to be 95% ice-covered.
• During the winter of 1998 Lake Superior was covered with little ice.
• Lake Superior normally gets no warmer than 53 degrees and usually not until August though bays and nearshore waters may get a bit warmer.
• On July 1, 1998 the water off the tip of Keweenaw Peninsula was 54 degrees and off Munising 53 degrees.
• It takes 191 years to make a total replacement of its water.