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Geomagnetic activity in March 1941
Mean Ap32.8No. 15 of 1138
G1+ days17
G3+ days4
Max Ap2071 Mar 1941
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1941 | 9o | 207 | G5 |
| 2 Mar 1941 | 5+ | 35 | G1 |
| 3 Mar 1941 | 5+ | 26 | G1 |
| 4 Mar 1941 | 5+ | 40 | G1 |
| 5 Mar 1941 | 5+ | 37 | G1 |
| 11 Mar 1941 | 5o | 14 | G1 |
| 14 Mar 1941 | 7o | 79 | G3 |
| 15 Mar 1941 | 5- | 23 | G1 |
| 19 Mar 1941 | 5+ | 24 | G1 |
| 20 Mar 1941 | 5+ | 33 | G1 |
| 21 Mar 1941 | 6o | 33 | G2 |
| 22 Mar 1941 | 5+ | 40 | G1 |
| 23 Mar 1941 | 5o | 21 | G1 |
| 28 Mar 1941 | 6+ | 59 | G2 |
| 29 Mar 1941 | 6+ | 42 | G2 |
| 30 Mar 1941 | 8- | 85 | G4 |
| 31 Mar 1941 | 8- | 76 | G4 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1940 | 36.5 | 13 | 7 |
| March 1941 | 32.8 | 17 | 4 |
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 32.8 in March 1941, No. 15 of 1138 months since 1932; 17 days reached G1 or higher.