List of magnetic storms in September 2001
Location — London (geographic coordinates — 51.51 N -0.13 W | time zone UTC+00)
Days with magnetic storms — 5
13 September 2001 — Magnetic storm of level G1
23 September 2001 — Magnetic storm of level G1
25 September 2001 — Magnetic storm of level G2
26 September 2001 — Magnetic storm of level G1
29 September 2001 — Magnetic storm of level G1
Days with geomagnetic disturbances — 9
03 September 2001 — geomagnetic disturbances
04 September 2001 — geomagnetic disturbances
11 September 2001 — geomagnetic disturbances
12 September 2001 — geomagnetic disturbances
14 September 2001 — geomagnetic disturbances
15 September 2001 — geomagnetic disturbances
18 September 2001 — geomagnetic disturbances
22 September 2001 — geomagnetic disturbances
30 September 2001 — geomagnetic disturbances
Maximum of solar activity in September 2001
Solar radio flux (10.7 cm) = 283
Mean planetary A index = 27
Mean planetary Kp index = 6