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Geomagnetic activity in September 1934
Mean Ap10.2No. 734 of 1138
G1+ days4
G3+ days0
Max Ap5425 Sep 1934
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 22 Sep 1934 | 5o | 11 | G1 |
| 24 Sep 1934 | 5+ | 27 | G1 |
| 25 Sep 1934 | 6+ | 54 | G2 |
| 27 Sep 1934 | 5- | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| September 1933 | 11.7 | 5 | 1 |
| September 1934 | 10.2 | 4 | 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 10.2 in September 1934, No. 734 of 1138 months since 1932; 4 days reached G1 or higher.