Kp index — 1968
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
8.3
1 Nov · G4
Storm nights
8
G1×5G3×1G4×2
Time at storm level
9.2%
intervals at Kp ≥ 5−
Avg Kp
2.3
all intervals
Tap a day — its eight intervals open here.
Highlights
- G4 storm · Nov 1–4 · peak Kp 8.3
1968 · the year at a glance — storm nights by month · year peak Kp 8.3
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.