1947 - Cold and snow prevail across Lower Michigan with lows in the upper 20s and highs only in the upper 30s to lower 40s.
1954 - 8 to 10 inches of snow fell in the Keweenaw Peninsula with 7.5 inches at Houghton and Marquette had 7.8 inches of snow.
1960 - 6.5 inches of snow fell in L'Anse.
1963 - A severe thunderstorm produced a wind gust to 60 mph 3.7 miles southwest of Laurium in the early evening.
1965 - The steel, self-unloading bulk freighter Cedarville, while carrying limestone, was moving at speed in fog and collided with the Norwegian freighter Topdalsfjord about 9:50 am and sank quickly 3 miles east of the Mackinac Bridge in the Straits of Mackinac in Lake Huron. The German motor vessel Weissenburg picked up the survivors. The Cedarville was later found to be at fault in the collision. 10 crew members perished.
1966 – Both Alpena and Sault Ste. Marie observe their coldest temperatures for the month of May. Alpena dips to a record 20° and Sault Ste. Marie 18°.
1974 - Temperatures tumble as cold high pressure builds into Lower Michigan. Record lows on this date include 22° at Lansing, 25° at Grand Rapids and 27° at Muskegon.
A two day span of record lows occurred in Detroit on the 6th with 31° and on the 7th with 27°.
2010 – Weather Forecast Office in Marquette had a daily record snowfall of 2.4 inches. A low pressure system originating in the Plains lifted into the Lower Great Lakes bringing moderate snow to portions of west and north central Upper Michigan on the 7th and 8th.