Kp index — May 1946
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
6.7
6 May · G3
Storm nights
10
G1×3G2×4G3×3
Time at storm level
13.3%
intervals at Kp ≥ 5−
Avg Kp
2.7
all intervals
Tap a day — its eight intervals open here.
Highlights
- G3 storm · May 6–9 · peak Kp 6.7
1946 · 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.