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Geomagnetic storms in Montreal — September 21, 2025

September 21, 2025
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Maximum Kp index on September 21, 2025

Kp = 3-

Maximum Kp index on September 21, 2025

The Earth's magnetosphere was quiet

Kp = 3-

Geomagnetic storms in Montreal on September 21, 2025

Changes in the geomagnetic index Kp from September 19 to 21, 2025 for mid latitudes

Time zone — UTC−04 — summer time (Montreal | geographic coordinates — 45.52 N 73.57 W)

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Geomagnetic index Kp for 3 days
PNG API: JSON | TXT

Geomagnetic storms in Montreal in September 2025

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

Time zone — UTC−04 — summer time (Montreal | geographic coordinates — 45.52 N 73.57 W)

August 2025 October 2025
Daily Kp index in September 2025
PNG API: JSON | TXT

Geomagnetic activity indices on September 21, 2025

Geomagnetic index Ap 6
Solar radio flux F10.7 176