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Geomagnetic activity in October 1942
Mean Ap22.2No. 104 of 1138
G1+ days16
G3+ days3
Max Ap8029 Oct 1942
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 2 Oct 1942 | 7- | 48 | G3 |
| 3 Oct 1942 | 6+ | 46 | G2 |
| 4 Oct 1942 | 5+ | 31 | G1 |
| 11 Oct 1942 | 5- | 10 | G1 |
| 12 Oct 1942 | 6o | 36 | G2 |
| 13 Oct 1942 | 6o | 32 | G2 |
| 14 Oct 1942 | 5+ | 34 | G1 |
| 15 Oct 1942 | 5- | 26 | G1 |
| 16 Oct 1942 | 5- | 22 | G1 |
| 18 Oct 1942 | 5- | 19 | G1 |
| 19 Oct 1942 | 5+ | 33 | G1 |
| 20 Oct 1942 | 5- | 19 | G1 |
| 28 Oct 1942 | 7o | 56 | G3 |
| 29 Oct 1942 | 7+ | 80 | G3 |
| 30 Oct 1942 | 5+ | 39 | G1 |
| 31 Oct 1942 | 5o | 30 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 1941 | 11.3 | 4 | 2 |
| October 1942 | 22.2 | 16 | 3 |
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.
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Mean Ap 22.2 in October 1942, No. 104 of 1138 months since 1932; 16 days reached G1 or higher.