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Geomagnetic activity in December 1933
Mean Ap7.2No. 988 of 1138
G1+ days3
G3+ days0
Max Ap245 Dec 1933
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Dec 1933 | 5- | 21 | G1 |
| 5 Dec 1933 | 5- | 24 | G1 |
| 9 Dec 1933 | 5- | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| December 1932 | 9.1 | 2 | 0 |
| December 1933 | 7.2 | 3 | 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 7.2 in December 1933, No. 988 of 1138 months since 1932; 3 days reached G1 or higher.