In 2024 the planetary Kp peaked at 9.0 (G5) on 11 May 2024: 46 storm nights over the year, and 4.2% of its three-hour intervals at storm level.
| Month | Max Kp | Peak day | Storm nights | By class | At storm level | Avg Kp |
|---|---|---|---|---|---|---|
| January | 4.0 | 1 | 0 | — | 0.0% | 1.3 |
| February | 4.3 | 11 | 0 | — | 0.0% | 1.2 |
| March | 8.3 | 24 | 5 | G1×2G2×2G4×1 | 4.4% | 1.9 |
| April | 7.0 | 19 | 3 | G1×2G3×1 | 3.8% | 1.9 |
| May | 9.0 | 11 | 8 | G1×1G2×3G3×2G4×1G5×1 | 10.1% | 2.3 |
| June | 7.7 | 28 | 4 | G1×2G2×1G4×1 | 3.3% | 1.9 |
| July | 5.3 | 30 | 3 | G1×3 | 1.2% | 1.6 |
| August | 8.0 | 12 | 8 | G1×4G2×2G3×1G4×1 | 9.3% | 2.3 |
| September | 7.3 | 17 | 4 | G1×1G2×1G3×2 | 6.3% | 2.4 |
| October | 8.7 | 10 | 8 | G1×4G2×1G3×1G4×2 | 9.3% | 2.4 |
| November | 5.7 | 10 | 2 | G1×1G2×1 | 1.3% | 1.9 |
| December | 5.3 | 17 | 1 | G1×1 | 0.8% | 1.8 |
In the hall of storms: The Gannon storm, 11 May 2024 · Kp 9.0 →
All-time record: Kp 9.0 — reached on 27 days, most recently 2024-05-11.
Ranked from the data: peak Kp, then intervals spent at 9.0. Nicknames and reach notes only where documented.
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