Geomagnetic storms in Philadelphia on July 4, 2026

July 4, 2026

Philadelphia change region

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Maximum Kp index on July 4, 2026

Kp = 7+

A geomagnetic storm was recorded — level G3

Kp = 7+

Changes in the geomagnetic index Kp from July 2 to 4, 2026 for mid latitudes

Time zone — UTC−04 — summer time (Philadelphia | geographic coordinates — 40.01 N 75.13 W)

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PNG API: JSON | TXT

Changes in the maximum daily geomagnetic index Kp in July 2026 for mid latitudes

Time zone — UTC−04 — summer time (Philadelphia | geographic coordinates — 40.01 N 75.13 W)

June 2026 August 2026

PNG API: JSON | TXT

Geomagnetic index A_p	75
Solar radio flux F10.7	161