Kp index — October 1933
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
5.3
12 Oct · G1
Storm nights
5
G1×5
Time at storm level
3.2%
intervals at Kp ≥ 5−
Avg Kp
1.9
all intervals
Tap a day — its eight intervals open here.
Highlights
- G1 storm · Oct 12–13 · peak Kp 5.3
1933 · the year at a glance — storm nights by month · year peak Kp 7.7
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.