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Geomagnetic activity in March 1937
Mean Ap11.9No. 587 of 1138
G1+ days9
G3+ days1
Max Ap5331 Mar 1937
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Mar 1937 | 6- | 22 | G2 |
| 2 Mar 1937 | 5- | 22 | G1 |
| 5 Mar 1937 | 6- | 33 | G2 |
| 13 Mar 1937 | 5o | 9 | G1 |
| 14 Mar 1937 | 5o | 20 | G1 |
| 15 Mar 1937 | 6- | 24 | G2 |
| 27 Mar 1937 | 5o | 29 | G1 |
| 28 Mar 1937 | 5- | 20 | G1 |
| 31 Mar 1937 | 7+ | 53 | G3 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| March 1936 | 8.9 | 5 | 0 |
| March 1937 | 11.9 | 9 | 1 |
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 11.9 in March 1937, No. 587 of 1138 months since 1932; 9 days reached G1 or higher.