List of magnetic storms in July 2004
Location — Yakutsk (geographic coordinates — 62.17 N 129.83 E | time zone UTC+09)
Days with magnetic storms — 7
17 July 2004 — Magnetic storm of level G2
23 July 2004 — Magnetic storm of level G2
24 July 2004 — Magnetic storm of level G1
25 July 2004 — Magnetic storm of level G4
26 July 2004 — Magnetic storm of level G3
27 July 2004 — Magnetic storm of level G5
28 July 2004 — Magnetic storm of level G3
Days with geomagnetic disturbances — 3
12 July 2004 — geomagnetic disturbances
13 July 2004 — geomagnetic disturbances
16 July 2004 — geomagnetic disturbances
Maximum of solar activity in July 2004
Solar radio flux (10.7 cm) = 175
Mean planetary A index = 162
Mean planetary Kp index = 9