List of magnetic storms in December 2019
Location — Boston (geographic coordinates — 42.24 N -71.03 W | time zone UTC-05 )
Days with geomagnetic disturbances — 2
18 December 2019 — geomagnetic disturbances
19 December 2019 — geomagnetic disturbances
Changes in the maximum daily geomagnetic index Kp in December 2019 for mid latitudes
Location — Boston (geographic coordinates — 42.24 N -71.03 W | time zone UTC-05 )

Location — Boston (geographic coordinates — 42.24 N -71.03 W | time zone UTC-05 )
18 December 2019 — geomagnetic disturbances
19 December 2019 — geomagnetic disturbances
Solar radio flux (10.7 cm) = 73
Mean planetary A index = 13
Mean planetary Kp index = 4