Geomagnetic storms in 1938
In 1938, the maximum daily Kp reached storm level (Kp 5 or more) on 95 days. 22 days were strong (Kp 7 or more) and 3 extreme (Kp 9).
Max Kp9
Storm days (Kp ≥ 5)95
Strong (Kp ≥ 7)22
Extreme (Kp 9)3
Storm days by month
Strongest storms
| Date | Max Kp | Daily Ap |
|---|---|---|
| April 16, 1938 | 9 | 136 |
| January 22, 1938 | 8+ | 128 |
| January 17, 1938 | 8+ | 120 |
| January 25, 1938 | 9− | 107 |
| May 11, 1938 | 9− | 103 |
| September 15, 1938 | 7+ | 100 |
| May 12, 1938 | 7+ | 76 |
| July 15, 1938 | 7 | 67 |
| October 7, 1938 | 7 | 67 |
| January 26, 1938 | 8+ | 62 |
GFZ Potsdam, Kp index (CC BY 4.0), doi:10.5880/Kp.0001.