List of magnetic storms in September 2025
Location — Chicago (geographic coordinates — 41.84 N -87.68 W | time zone UTC-05 - summer time)
Days with magnetic storms — 1
01 September 2025 — Magnetic storm of level G2
Maximum of solar activity in September 2025
Solar radio flux (10.7 cm) = 206
Mean planetary A index = 16
Mean planetary Kp index = 6