Kp index — December 1986
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
5.0
13 Dec · G1
Storm nights
3
G1×3
Time at storm level
1.6%
intervals at Kp ≥ 5−
Avg Kp
1.8
all intervals
Tap a day — its eight intervals open here.
Highlights
- G1 storm · Dec 13–14 · peak Kp 5.0
1986 · 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.