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Geomagnetic activity in March 1966
Mean Ap12.6No. 539 of 1138
G1+ days7
G3+ days3
Max Ap6723 Mar 1966
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 13 Mar 1966 | 6- | 14 | G2 |
| 14 Mar 1966 | 7+ | 64 | G3 |
| 19 Mar 1966 | 5- | 20 | G1 |
| 23 Mar 1966 | 7o | 67 | G3 |
| 26 Mar 1966 | 6- | 20 | G2 |
| 28 Mar 1966 | 7o | 42 | G3 |
| 29 Mar 1966 | 5- | 12 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1965 | 8.3 | 4 | 0 |
| March 1966 | 12.6 | 7 | 3 |
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 12.6 in March 1966, No. 539 of 1138 months since 1932; 7 days reached G1 or higher.