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Geomagnetic activity in March 1958
Mean Ap26.3No. 48 of 1138
G1+ days23
G3+ days2
Max Ap6412 Mar 1958
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Mar 1958 | 5o | 21 | G1 |
| 4 Mar 1958 | 5o | 28 | G1 |
| 5 Mar 1958 | 7- | 39 | G3 |
| 6 Mar 1958 | 5+ | 36 | G1 |
| 7 Mar 1958 | 5+ | 26 | G1 |
| 8 Mar 1958 | 5o | 22 | G1 |
| 11 Mar 1958 | 5- | 22 | G1 |
| 12 Mar 1958 | 7o | 64 | G3 |
| 13 Mar 1958 | 6- | 48 | G2 |
| 14 Mar 1958 | 6- | 20 | G2 |
| 15 Mar 1958 | 5- | 23 | G1 |
| 16 Mar 1958 | 5- | 16 | G1 |
| 17 Mar 1958 | 5o | 27 | G1 |
| 18 Mar 1958 | 6- | 34 | G2 |
| 19 Mar 1958 | 6- | 44 | G2 |
| 20 Mar 1958 | 5o | 38 | G1 |
| 21 Mar 1958 | 5o | 33 | G1 |
| 22 Mar 1958 | 6o | 24 | G2 |
| 23 Mar 1958 | 5- | 21 | G1 |
| 24 Mar 1958 | 5o | 27 | G1 |
| 25 Mar 1958 | 6o | 33 | G2 |
| 26 Mar 1958 | 5+ | 27 | G1 |
| 30 Mar 1958 | 6- | 32 | G2 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1957 | 26.0 | 12 | 5 |
| March 1958 | 26.3 | 23 | 2 |
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 26.3 in March 1958, No. 48 of 1138 months since 1932; 23 days reached G1 or higher.