Geomagnetic Storms of 2013
18 geomagnetic storms of G1 or more began in 2013: 9 G1, 6 G2, 2 G3, 1 G4, 0 G5. The strongest began October 2, 2013 and reached Kp 8-, rank 274 of every storm since 1932.
By month
Every storm of 2013
Times are UT, when the first block at Kp 5 or more began.
| Began (UTC) | Level | Peak Kp | Hours | Highest daily Ap |
|---|---|---|---|---|
| Mar 1, 09:00 | G1 Minor | 5 | 3 | 34 |
| Mar 17, 06:00 | G3 Strong | 7- | 18 | 72 |
| Mar 27, 15:00 | G1 Minor | 5 | 3 | 20 |
| Mar 29, 15:00 | G1 Minor | 5+ | 15 | 28 |
| Apr 24, 18:00 | G1 Minor | 5 | 3 | 24 |
| May 1, 18:00 | G2 Moderate | 6- | 3 | 29 |
| May 18, 03:00 | G1 Minor | 5+ | 3 | 19 |
| May 24, 18:00 | G2 Moderate | 6- | 30 | 37 |
| Jun 1, 00:00 | G3 Strong | 7 | 15 | 58 |
| Jun 6, 15:00 | G2 Moderate | 6- | 15 | 27 |
| Jun 29, 00:00 | G2 Moderate | 6+ | 12 | 51 |
| Jul 14, 18:00 | G1 Minor | 5+ | 12 | 26 |
| Aug 16, 03:00 | G1 Minor | 5+ | 3 | 26 |
| Aug 27, 18:00 | G1 Minor | 5 | 3 | 17 |
| Oct 2, 00:00 | G4 Severe | 8- | 21 | 58 |
| Oct 8, 18:00 | G2 Moderate | 6- | 15 | 29 |
| Nov 9, 06:00 | G1 Minor | 5 | 3 | 22 |
| Dec 8, 00:00 | G2 Moderate | 6 | 6 | 28 |
More
Sources
Kp and ap from GFZ Helmholtz Centre for Geosciences, Geomagnetic Observatory Niemegk, licensed CC BY 4.0: Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021, The geomagnetic Kp index and derived indices of geomagnetic activity, Space Weather, doi:10.1029/2020SW002641; data doi:10.5880/Kp.0001. Storms, levels and aurora reach worked out by WeatherOverTime from those values and NOAA’s space weather scales. Definitive through August 31, 2026; later values are preliminary. Rebuilt 2026-09-24.