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Geomagnetic activity in March 1965
Mean Ap8.3No. 909 of 1138
G1+ days4
G3+ days0
Max Ap263 Mar 1965
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Mar 1965 | 5- | 26 | G1 |
| 4 Mar 1965 | 6o | 21 | G2 |
| 23 Mar 1965 | 5o | 25 | G1 |
| 25 Mar 1965 | 5o | 20 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1964 | 12.7 | 7 | 0 |
| March 1965 | 8.3 | 4 | 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 8.3 in March 1965, No. 909 of 1138 months since 1932; 4 days reached G1 or higher.