Kp index — April 2008
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
5.3
23 Apr · G1
Storm nights
3
G1×3
Time at storm level
1.7%
intervals at Kp ≥ 5−
Avg Kp
1.9
all intervals
Tap a day — its eight intervals open here.
Highlights
- G1 storm · Apr 23 · peak Kp 5.3
2008 · the year at a glance — storm nights by month · year peak Kp 6.3
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.