Kp index — February 1988
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
7.3
22 Feb · G3
Storm nights
6
G1×4G2×1G3×1
Time at storm level
7.3%
intervals at Kp ≥ 5−
Avg Kp
2.3
all intervals
Tap a day — its eight intervals open here.
Highlights
- G3 storm · Feb 21–23 · peak Kp 7.3
1988 · the year at a glance — storm nights by month · year peak Kp 8.0
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.