Figure 7   June CET predictions of multiple regression model using June P, S  & C indices for period used
to develop model (1881-1970) and for 1971-2003 compared with observed June CET 1881-2003 and the
model errors (observed - predicted CET).

Equation: Jun CET = 14.034 + (-0.00629 x Jun P) + (0.03206 x Jun S) + (-0.01765 x Jun C) which explains 18% of variation in Jun CET