Kp index — March 1959
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
8.3
27 Mar · G4
Storm nights
10
G1×5G2×1G3×2G4×2
Time at storm level
15.7%
intervals at Kp ≥ 5−
Avg Kp
2.7
all intervals
Tap a day — its eight intervals open here.
Highlights
- G4 storm · Mar 25–31 · peak Kp 8.3
1959 · 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.