Geomagnetic storms in Pierre in December 2025

01.12.2025 Pierre

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Geomagnetic storms in Pierre in December 2025

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

Location — Pierre (geographic coordinates — 44.37 N -100.34 W | time zone UTC-06 )

geomagnetic storms in November 2025 (Pierre) geomagnetic storms in January 2026 (Pierre)

Changes in the maximum daily geomagnetic index Kp in December 2025

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List of magnetic storms in December 2025

Location — Pierre (geographic coordinates — 44.37 N -100.34 W | time zone UTC-06 )

Days with magnetic storms — 5

03 December 2025 — Magnetic storm of level G2

10 December 2025 — Magnetic storm of level G2

12 December 2025 — Magnetic storm of level G1

21 December 2025 — Magnetic storm of level G1

22 December 2025 — Magnetic storm of level G1

Days with geomagnetic disturbances — 5

04 December 2025 — geomagnetic disturbances

06 December 2025 — geomagnetic disturbances

11 December 2025 — geomagnetic disturbances

17 December 2025 — geomagnetic disturbances

23 December 2025 — geomagnetic disturbances

Maximum of solar activity in December 2025

Solar radio flux (10.7 cm) = 220

Mean planetary A index = 33

Mean planetary Kp index = 6.67