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Geomagnetic activity in February 1933
Mean Ap11.3No. 643 of 1138
G1+ days7
G3+ days0
Max Ap3421 Feb 1933
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 19 Feb 1933 | 6- | 28 | G2 |
| 20 Feb 1933 | 6- | 24 | G2 |
| 21 Feb 1933 | 5+ | 34 | G1 |
| 22 Feb 1933 | 5+ | 33 | G1 |
| 23 Feb 1933 | 5o | 30 | G1 |
| 24 Feb 1933 | 5+ | 32 | G1 |
| 26 Feb 1933 | 5- | 22 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1932 | 11.6 | 6 | 0 |
| February 1933 | 11.3 | 7 | 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 11.3 in February 1933, No. 643 of 1138 months since 1932; 7 days reached G1 or higher.