Kp index — April 1989
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
6.7
26 Apr · G3
Storm nights
15
G1×8G2×6G3×1
Time at storm level
20.4%
intervals at Kp ≥ 5−
Avg Kp
3.2
all intervals
Tap a day — its eight intervals open here.
Highlights
- G3 storm · Apr 25–30 · peak Kp 6.7
1989 · the year at a glance — storm nights by month · year peak Kp 9.0
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.