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Geomagnetic activity in February 1941
Mean Ap17.8No. 214 of 1138
G1+ days11
G3+ days0
Max Ap4122 Feb 1941
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 3 Feb 1941 | 5- | 23 | G1 |
| 6 Feb 1941 | 5- | 24 | G1 |
| 7 Feb 1941 | 5+ | 30 | G1 |
| 13 Feb 1941 | 5o | 27 | G1 |
| 14 Feb 1941 | 5o | 26 | G1 |
| 15 Feb 1941 | 5+ | 28 | G1 |
| 17 Feb 1941 | 5- | 20 | G1 |
| 21 Feb 1941 | 6- | 35 | G2 |
| 22 Feb 1941 | 6- | 41 | G2 |
| 23 Feb 1941 | 6- | 36 | G2 |
| 24 Feb 1941 | 5o | 23 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| February 1940 | 12.4 | 3 | 0 |
| February 1941 | 17.8 | 11 | 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 17.8 in February 1941, No. 214 of 1138 months since 1932; 11 days reached G1 or higher.