Kp index — 2024
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
9.0
11 May · G5
Storm nights
8
G1×1G2×3G3×2G4×1G5×1
Time at storm level
10.1%
intervals at Kp ≥ 5−
Avg Kp
2.3
all intervals
Tap a day — its eight intervals open here.
Highlights
- G5 storm · May 10–13 · peak Kp 9.0
- Strongest activity since October 2003
2024 · 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.