Kp index — June 2025
The Kp archive
GFZ definitive record · 3-hour UTC intervals · 1932 → 2026-07-31
Max Kp
7.7
1 Jun · G4
Storm nights
10
G1×6G3×3G4×1
Time at storm level
16.3%
intervals at Kp ≥ 5−
Avg Kp
2.9
all intervals
Tap a day — its eight intervals open here.
Highlights
- G4 storm · Jun 1–4 · peak Kp 7.7
2025 · the year at a glance — storm nights by month · year peak Kp 8.7
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.