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Figure 9. Total Degree~ays, Jan. to June (1886 to 1899), Yoaat Mine, SCC -1888. <br />• <br />• <br />7600 <br />7400 <br />7200 <br />7000 <br />6600 <br />6600 <br />6400 <br />6200 <br />6000 <br />. ~ Total Degree days (Jan.lune) tAverage <br />1986 1967 1986 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 <br />