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Geomagnetic activity in March 1964
Mean Ap12.7No. 534 of 1138
G1+ days7
G3+ days0
Max Ap524 Mar 1964
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Mar 1964 | 6o | 52 | G2 |
| 5 Mar 1964 | 6- | 33 | G2 |
| 12 Mar 1964 | 5- | 16 | G1 |
| 22 Mar 1964 | 6- | 28 | G2 |
| 23 Mar 1964 | 6o | 30 | G2 |
| 24 Mar 1964 | 5- | 19 | G1 |
| 30 Mar 1964 | 6- | 26 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1963 | 8.2 | 4 | 0 |
| March 1964 | 12.7 | 7 | 0 |
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 12.7 in March 1964, No. 534 of 1138 months since 1932; 7 days reached G1 or higher.