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Geomagnetic activity in March 1955
Mean Ap14.4No. 401 of 1138
G1+ days7
G3+ days0
Max Ap5331 Mar 1955
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 Mar 1955 | 6o | 30 | G2 |
| 9 Mar 1955 | 5o | 23 | G1 |
| 18 Mar 1955 | 5- | 15 | G1 |
| 22 Mar 1955 | 6+ | 35 | G2 |
| 23 Mar 1955 | 5+ | 21 | G1 |
| 30 Mar 1955 | 6- | 18 | G2 |
| 31 Mar 1955 | 6+ | 53 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1954 | 16.3 | 7 | 0 |
| March 1955 | 14.4 | 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 14.4 in March 1955, No. 401 of 1138 months since 1932; 7 days reached G1 or higher.