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January saw nine daily highs of 40 degrees or better in the Twin Cities. The John Beargrease Sled Dog Marathon along the North Shore was canceled for lack of snow. The Twin Cities didn't drop below zero until Jan. 18, tying the record for the latest first subzero temp in winter, and the first of only three for the season. Just 4.6 inches of snow fell in the metro.
Cars and trucks were banned from Hennepin County lakes on Feb. 9. A Leap Day snow/ice/rainstorm brought 2.23 inches of rain to Faribault on Feb. 29, a statewide Leap Day record. Up North, double-digit snow depths, including 12.3 inches at Hinckley, also set Leap Day records and made February the first month with above-normal precipitation since July 2011.
A weeks-long heat wave left Minnesotans giddy. From March 10-20, seven state record highs were broken. The Twin Cities hit 80 on March 17, the earliest date ever, during a stretch with eight consecutive daily record highs for dew point. (There were 12 for the year.) The Twin Cities also had nine record-warm nights and the mean temperature March 10-24 was 27 degrees above normal. Minnesota lakes started losing ice March 11, many on their earliest dates ever. A tornado near Elysian March 19 was the second-earliest in state records.
Luverne hit 90 April 1, the earliest 90 on the books in the state. Southern Minnesota was nipped by frost April 10-12. A record 1.19 inches of rain fell in the Twin Cities on April 15 and a foot or more of snow Up North eased drought conditions.
Southern Minnesota saw daily record rainfalls May 1-6, including a May 6 state record 3.62 inches at Pipestone. The southwestern and central parts of the state absorbed 8 inches or more May 4-6. Drought over! The first week of the month brought 4.23 inches of rain to the Twin Cities -- more than a normal month's worth. The Twin Cities received 9.34 inches, making May the second-wettest on record. New Ulm led the state with 12.39. The rain helped farmers avoid the brunt of the next drought, in late summer.
Homes were flooded and roads closed around Cannon Falls after 8.83 inches of rain fell June 14, a Minnesota record for any June day. That was overshadowed a week later by epic rains in the Duluth area, ranging from 7 to 10 inches. Raging creeks and rivers tore up highways, parks and trails, knocking hundreds of people out of their homes from Aitkin to Two Harbors.
The 4th brought a record high (101) and a record warm low (81) to the Twin Cities, along with a dew point of 77, the highest of the year. July 6 was the year's hottest day (102), and made 2012 the first year with more than one 100-degree day since 1988 (which had four). Some southern Minnesota lake temperatures exceeded 90 degrees at mid-month. Duluth's average July temperature tied the warmest ever; the Twin Cities' was second-warmest, but the dew point average was slightly below the 110-year average. Cities from International Falls to Spring Grove received daily record rains near mid-month; Twin Cities rainfall was slightly above normal.
The shorter days broke the heat. Still, August ended the warmest meteorological summer on record for Duluth and third-warmest for the Twin Cities. The month also was dry, with only one-third of the normal rainfall from Duluth to southern Minnesota.
Sept. 11 hit 95 in the Twin Cities, the latest high of 95 or above since 1939. It also was the 31st day of 90 or higher in the Twin Cities, making the most such days in a season since 1988 (which had 44). Days later, cities across the Iron Range dropped to 28 degrees; Warroad fell to 19 degrees on Sept. 18. Drought intensified; the Twin Cities had its second-driest September on record.
Drought-enhanced wildfires broke out across northwestern Minnesota, peaking Oct. 2 when 11 homes near Karlstad were destroyed. Fires were smothered by wet snow two days later. Badger, near Roseau, received 14 inches, an early-season record. Up to 2 inches of rain fell across the north metro and northern Minnesota on Oct. 23, and over southeast Minnesota Oct. 24-25. October's average Twin Cities temperature, 1.4 degrees below normal, ended a 16-month string of above-normal temps.
A record high of 69 (along with a record high dew point of 56) in the Twin Cites Nov. 10 led to four small tornadoes, the second-latest tornado occurrence on record in Minnesota. About 32 hours later, a dusting of snow across the metro turned a morning rush hour into a mash-up. It was the quickest switch ever from tornadoes to snow, climatologists noted. Rochester hit a record 70 on Nov. 21, and Thanksgiving Day saw a record 60 in the Twin Cities, followed by snow and low of 24 that evening. Parts of the Arrowhead received 6 inches or more.
After a 55-degree high Dec. 3 in the Twin Cities, winter made a triumphant return, dumping more than a foot of snow across much of Minnesota Dec. 9-10, the most in two years. Sacred Heart in southwestern Minnesota and Lake Elmo in the metro hit 17 inches. In the Twin Cities the snow included more than a normal December's worth of precipitation; as the year ended, precipitation was only about a drop short of normal.
Bill McAuliffe • 612-673-7646