List of magnetic storms in December 2009
Location — Calgary (geographic coordinates — 51.05 N -114.06 W | time zone UTC-07)
There were no days with an increased level of geomagnetic disturbance in December 2009
Maximum of solar activity in December 2009
Solar radio flux (10.7 cm) = 87
Mean planetary A index = 4
Mean planetary Kp index = 3