Counties(9): Aitkin, Becker, Grant, Itasca, Kanabec, Lake, Mahnomen, Mille Lacs, Otter Tail

Data: 5/6 Mahnomen ANy, 5/11 Becker NaH, 5/13 Aitkin PEJ, 5/15 Itasca SC, 5/16 Mille Lacs ANy, 5/16 Lake RAE, 5/17 Kanabec ANy, 5/17 Grant AiS (2), 5/17 Otter Tail AiS (1), 5/17 Otter Tail AiS (2), 5/17 Otter Tail AiS (7)

 South (108 observations)

Counties(29): Benton, Brown, Carver, Chisago, Cottonwood, Dakota, Faribault, Fillmore, Freeborn, Hennepin, Houston, Lac qui Parle, Le Sueur, McLeod, Meeker, Mower, Murray, Nobles, Olmsted, Redwood, Renville, Rock, Scott, Steele, Stevens, Swift, Wabasha, Washington, Wright.

Data: 5/4 Carver JCy (2), 5/5 Murray SLH, 5/5 Benton ANy, 5/5 Benton DBz, 5/7 Wabasha MJM (1), 5/7 Hennepin ABL (1), 5/7 Dakota KCl (1), 5/7 Washington DnS (1), 5/8 Houston SHo (5), 5/8 Hennepin ABL, 5/8 Olmsted SC, 5/8 Lac qui Parle DLP, 5/8 Renville LMc (5), 5/8 Faribault WAF, 5/8 Carver TWe (1), 5/8 Washington JHe (1), 5/8 Renville DFe (5), 5/9 McLeod BHa, 5/9 Benton HHD, 5/9 Rock BWF, 5/9 Hennepin ABL (3), 5/9 Houston SC, 5/9 Mower SC, 5/9 Benton MJB, 5/9 Carver JCy (3), 5/9 Wright ToL, 5/9 Cottonwood TWe (2), 5/10 Brown BTS, 5/10 Cottonwood LMc (1), 5/10 Murray LMc (1), 5/10 Murray LMc (1), 5/10 Murray LMc (2), 5/10 Redwood SC, 5/10 Murray BAb, 5/10 Murray RAE, 5/10 Freeborn JSP, 5/10 Murray LGl, 5/10 Murray MariannMN (1), 5/10 Murray MariannMN (1), 5/10 Murray MariannMN (2), 5/10 Lac qui Parle TWe (2), 5/10 Rock TWe (1), 5/10 Rock TWe (5), 5/10 Cottonwood DFe (1), 5/10 Murray DFe (1), 5/10 Murray DFe (1), 5/10 Murray DFe (2), 5/10 Murray RZi, 5/11 Brown ARW (1), 5/11 Steele DAB, 5/11 Lac qui Parle PEJ, 5/11 Hennepin MAJ, 5/11 Stevens SC, 5/11 Benton HHD, 5/11 Cottonwood BAb, 5/11 Olmsted NoK (3), 5/11 Lac qui Parle DFN, 5/11 Le Sueur LMc (1), 5/11 Lac qui Parle TWe (1), 5/11 Brown MiO, 5/11 Cottonwood JCJ, 5/11 Cottonwood JCJ, 5/11 Le Sueur DFe (1), 5/11 Cottonwood RZi, 5/12 Hennepin ABL, 5/12 Redwood BAb, 5/12 Nobles ANy, 5/12 Cottonwood LGl, 5/12 Chisago DPi (1), 5/12 Dakota TPu (3), 5/12 Cottonwood RZi, 5/12 Dakota KCl (1), 5/13 Carver JCy (4), 5/13 Fillmore DAB, 5/13 Dakota TPu (3), 5/13 Cottonwood RBW, 5/13 Fillmore ANy, 5/13 Mower ANy, 5/13 Nobles BTS, 5/13 Nobles RAE, 5/13 Dakota TPu [probable], 5/13 Dakota TPu [confirmed], 5/14 Hennepin ToL, 5/14 Steele ANy, 5/14 Hennepin ToL, 5/14 Hennepin ToL, 5/14 Carver TPu (1), 5/14 Carver TPu (1), 5/15 Steele BAb, 5/15 Meeker PKF (2), 5/15 Le Sueur BTS, 5/15 Le Sueur MiO, 5/15 Le Sueur SLH, 5/15 Fillmore JJS, 5/15 Fillmore GHo (1), 5/15 Cottonwood KCl (8), 5/15 Murray KCl (12), 5/15 Redwood KCl (3), 5/15 Dakota TPu (2), 5/16 Olmsted NoK (2), 5/16 Benton DOr, 5/16 Le Sueur TPu (1), 5/16 Le Sueur TPu, 5/16 Scott TPu (2), 5/17 Scott BAb, 5/17 Meeker PKF, 5/17 Washington PNi, 5/17 Swift DLP