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Kp index — March 1947

The Kp archive

GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
this month's page ↗
Max Kp
8.3
3 Mar · G4
Storm nights
19
G1×9G2×3G3×5G4×2
Time at storm level
25.8%
intervals at Kp ≥ 5−
Avg Kp
3.5
all intervals
Tap a day — its eight intervals open here.
Highlights
  • G4 storm · Mar 2–4 · peak Kp 8.3
1947 · the year at a glance — storm nights by month · year peak Kp 8.7

All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.

Kp data: GFZ German Research Centre for Geosciences · CC BY 4.0 ↗