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Geomagnetic activity in June 1981
Mean Ap11.5No. 627 of 1138
G1+ days5
G3+ days1
Max Ap507 Jun 1981
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 6 Jun 1981 | 5- | 14 | G1 |
| 7 Jun 1981 | 7- | 50 | G3 |
| 8 Jun 1981 | 5- | 16 | G1 |
| 25 Jun 1981 | 5- | 15 | G1 |
| 29 Jun 1981 | 6o | 33 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| June 1980 | 13.2 | 9 | 0 |
| June 1981 | 11.5 | 5 | 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 11.5 in June 1981, No. 627 of 1138 months since 1932; 5 days reached G1 or higher.