List of magnetic storms in July 2003
Location — Sarnia (geographic coordinates — 42.99 N -82.4 W | time zone UTC-04 - summer time)
Days with magnetic storms — 15
03 July 2003 — Magnetic storm of level G1
04 July 2003 — Magnetic storm of level G1
10 July 2003 — Magnetic storm of level G1
11 July 2003 — Magnetic storm of level G3
12 July 2003 — Magnetic storm of level G3
14 July 2003 — Magnetic storm of level G1
15 July 2003 — Magnetic storm of level G1
16 July 2003 — Magnetic storm of level G2
19 July 2003 — Magnetic storm of level G1
26 July 2003 — Magnetic storm of level G1
27 July 2003 — Magnetic storm of level G1
28 July 2003 — Magnetic storm of level G1
29 July 2003 — Magnetic storm of level G1
30 July 2003 — Magnetic storm of level G1
31 July 2003 — Magnetic storm of level G1
Days with geomagnetic disturbances — 12
01 July 2003 — geomagnetic disturbances
02 July 2003 — geomagnetic disturbances
05 July 2003 — geomagnetic disturbances
07 July 2003 — geomagnetic disturbances
13 July 2003 — geomagnetic disturbances
17 July 2003 — geomagnetic disturbances
18 July 2003 — geomagnetic disturbances
20 July 2003 — geomagnetic disturbances
21 July 2003 — geomagnetic disturbances
23 July 2003 — geomagnetic disturbances
24 July 2003 — geomagnetic disturbances
25 July 2003 — geomagnetic disturbances
Maximum of solar activity in July 2003
Solar radio flux (10.7 cm) = 157
Mean planetary A index = 48
Mean planetary Kp index = 7