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Geomagnetic activity in June 1941
Mean Ap10.9No. 675 of 1138
G1+ days6
G3+ days0
Max Ap3913 Jun 1941
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 Jun 1941 | 6o | 31 | G2 |
| 11 Jun 1941 | 6- | 22 | G2 |
| 13 Jun 1941 | 6o | 39 | G2 |
| 14 Jun 1941 | 5- | 18 | G1 |
| 17 Jun 1941 | 5+ | 18 | G1 |
| 20 Jun 1941 | 5+ | 22 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| June 1940 | 16.4 | 7 | 1 |
| June 1941 | 10.9 | 6 | 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 10.9 in June 1941, No. 675 of 1138 months since 1932; 6 days reached G1 or higher.