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Geomagnetic storm on 4 Dec 1958 (G3)
Max Kp7-G3
Ap54No. 21 in 1958
Consecutive G1+ days2
Ap rank756since 1932
Kp by 3-hour slot (UTC)
4-
3o
4o
5+
6-
5+
7-
6o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Dec 1958 | 1+ | 2 | – |
| 2 Dec 1958 | 5+ | 23 | G1 |
| 3 Dec 1958 | 3+ | 7 | – |
| 4 Dec 1958 | 7- | 54 | G3 |
| 5 Dec 1958 | 7o | 28 | G3 |
| 6 Dec 1958 | 4- | 12 | – |
| 7 Dec 1958 | 3- | 6 | – |
Highest-Ap days of 1958
200
199
131
103
89
85
82
82
77
75
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Max Kp 7-, Ap 54: No. 756 of 34,615 days since 1932 by Ap.