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Geomagnetic storms in Boston in September 2025

Geomagnetic storms in Boston in September 2025

Changes in the maximum daily geomagnetic index Kp in September 2025 for mid latitudes

Location — Boston (geographic coordinates — 42.24 N -71.03 W | time zone UTC-04 - summer time)

Changes in the maximum daily geomagnetic index Kp in September 2025
This chart in PNG format — high resolution API data: JSON or TXT

List of magnetic storms in September 2025

Location — Boston (geographic coordinates — 42.24 N -71.03 W | time zone UTC-04 - summer time)

Days with magnetic storms — 1

01 September 2025 — Magnetic storm of level G1

Maximum of solar activity in September 2025

Solar radio flux (10.7 cm) = 221

Mean planetary A index = 6

Mean planetary Kp index = 5