Geomagnetic storms in Concord in September 2025
Time zone — UTC−04 — summer time (Concord | 43.22 N 71.55 W)
Geomagnetic storm calendar in September 2025 by time in Concord
Days with magnetic storms — 8 Days with geomagnetic disturbances — 2
Ap and F10.7 index values in September 2025
Maximum value of the Ap index for the month — 48 Maximum value of the F10.7 index for the month — 202 Maximum value of the Kp index for the month — 7+