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Geomagnetic activity in April 1968
Mean Ap13.1No. 492 of 1138
G1+ days6
G3+ days1
Max Ap366 Apr 1968
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Apr 1968 | 5o | 26 | G1 |
| 5 Apr 1968 | 7o | 34 | G3 |
| 6 Apr 1968 | 6o | 36 | G2 |
| 13 Apr 1968 | 5- | 23 | G1 |
| 14 Apr 1968 | 5o | 26 | G1 |
| 26 Apr 1968 | 6- | 26 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1967 | 8.9 | 5 | 0 |
| April 1968 | 13.1 | 6 | 1 |
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 13.1 in April 1968, No. 492 of 1138 months since 1932; 6 days reached G1 or higher.