Kp index — November 1964
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
4.7
1 Nov · G1
Storm nights
3
G1×3
Time at storm level
1.3%
intervals at Kp ≥ 5−
Avg Kp
1.5
all intervals
Tap a day — its eight intervals open here.
Highlights
- G1 storm · Nov 1 · peak Kp 4.7
1964 · 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.