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Geomagnetic activity in August 1966
Mean Ap11.2No. 649 of 1138
G1+ days4
G3+ days1
Max Ap8230 Aug 1966
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 19 Aug 1966 | 5- | 20 | G1 |
| 29 Aug 1966 | 5o | 13 | G1 |
| 30 Aug 1966 | 7+ | 82 | G3 |
| 31 Aug 1966 | 5+ | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1965 | 8.5 | 3 | 0 |
| August 1966 | 11.2 | 4 | 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 11.2 in August 1966, No. 649 of 1138 months since 1932; 4 days reached G1 or higher.