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Geomagnetic activity in November 1991
Mean Ap32.6No. 16 of 1138
G1+ days15
G3+ days5
Max Ap1199 Nov 1991
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Nov 1991 | 8+ | 109 | G4 |
| 2 Nov 1991 | 7o | 41 | G3 |
| 4 Nov 1991 | 6o | 38 | G2 |
| 5 Nov 1991 | 6- | 27 | G2 |
| 6 Nov 1991 | 5o | 18 | G1 |
| 8 Nov 1991 | 9- | 98 | G5 |
| 9 Nov 1991 | 8+ | 119 | G4 |
| 11 Nov 1991 | 5o | 20 | G1 |
| 15 Nov 1991 | 5o | 30 | G1 |
| 17 Nov 1991 | 5- | 22 | G1 |
| 18 Nov 1991 | 5o | 30 | G1 |
| 19 Nov 1991 | 6+ | 56 | G2 |
| 21 Nov 1991 | 7- | 65 | G3 |
| 22 Nov 1991 | 6+ | 57 | G2 |
| 23 Nov 1991 | 5o | 33 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| November 1990 | 8.9 | 2 | 1 |
| November 1991 | 32.6 | 15 | 5 |
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 32.6 in November 1991, No. 16 of 1138 months since 1932; 15 days reached G1 or higher.