Summer Months	Maximum anomaly in surface air temperature (˚C)		NAO	SOI	EL-NINO 3.4	Anomaly of EL-NINO 3.4
Summer Months	Over western Europe	Over central Europe	NAO	SOI	EL-NINO 3.4	Anomaly of EL-NINO 3.4
JUNE 2015	+1.81	+1.53	−0.07	−1.70	28.96˚C	+1.32˚C
JULY 2015	+5.30	+6.70	−3.18	−2.40	28.78	+1.60
AUGUST 2015	+1.96	+4.33	−0.76	−3.40	28.75	+2.07