List of magnetic storms in December 2004
Location — Station Vostok (geographic coordinates — 78.45 S 106.83 E | time zone UTC+03)
Days with magnetic storms — 16
06 December 2004 — Magnetic storm of level G2
07 December 2004 — Magnetic storm of level G1
08 December 2004 — Magnetic storm of level G1
09 December 2004 — Magnetic storm of level G1
10 December 2004 — Magnetic storm of level G1
11 December 2004 — Magnetic storm of level G2
12 December 2004 — Magnetic storm of level G3
14 December 2004 — Magnetic storm of level G1
16 December 2004 — Magnetic storm of level G1
17 December 2004 — Magnetic storm of level G1
18 December 2004 — Magnetic storm of level G2
21 December 2004 — Magnetic storm of level G2
22 December 2004 — Magnetic storm of level G2
28 December 2004 — Magnetic storm of level G2
29 December 2004 — Magnetic storm of level G2
30 December 2004 — Magnetic storm of level G2
Days with geomagnetic disturbances — 2
01 December 2004 — geomagnetic disturbances
26 December 2004 — geomagnetic disturbances
Maximum of solar activity in December 2004
Solar radio flux (10.7 cm) = 111
Mean planetary A index = 48
Mean planetary Kp index = 7

