Kp index — April 1942
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
7.3
4 Apr · G3
Storm nights
11
G1×5G2×5G3×1
Time at storm level
11.3%
intervals at Kp ≥ 5−
Avg Kp
2.5
all intervals
Tap a day — its eight intervals open here.
Highlights
- G3 storm · Apr 2–4 · peak Kp 7.3
1942 · the year at a glance — storm nights by month · year peak Kp 8.0
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.