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Geomagnetic activity in August 1937
Mean Ap10.2No. 731 of 1138
G1+ days4
G3+ days1
Max Ap7422 Aug 1937
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Aug 1937 | 6+ | 48 | G2 |
| 3 Aug 1937 | 5+ | 16 | G1 |
| 4 Aug 1937 | 6+ | 26 | G2 |
| 22 Aug 1937 | 8o | 74 | G4 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| August 1936 | 4.9 | 0 | 0 |
| August 1937 | 10.2 | 4 | 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 10.2 in August 1937, No. 731 of 1138 months since 1932; 4 days reached G1 or higher.