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Geomagnetic activity in April 1954
Mean Ap13.9No. 443 of 1138
G1+ days4
G3+ days2
Max Ap5612 Apr 1954
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Apr 1954 | 5- | 17 | G1 |
| 11 Apr 1954 | 7+ | 35 | G3 |
| 12 Apr 1954 | 7+ | 56 | G3 |
| 27 Apr 1954 | 5o | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1953 | 15.5 | 7 | 0 |
| April 1954 | 13.9 | 4 | 2 |
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
Mean Ap 13.9 in April 1954, No. 443 of 1138 months since 1932; 4 days reached G1 or higher.