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Geomagnetic activity in July 1984
Mean Ap16.0No. 297 of 1138
G1+ days9
G3+ days1
Max Ap6213 Jul 1984
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 Jul 1984 | 5- | 14 | G1 |
| 11 Jul 1984 | 5- | 11 | G1 |
| 13 Jul 1984 | 7o | 62 | G3 |
| 14 Jul 1984 | 6o | 40 | G2 |
| 15 Jul 1984 | 5- | 25 | G1 |
| 16 Jul 1984 | 5- | 25 | G1 |
| 17 Jul 1984 | 6o | 43 | G2 |
| 29 Jul 1984 | 5- | 12 | G1 |
| 31 Jul 1984 | 5+ | 17 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| July 1983 | 12.4 | 7 | 0 |
| July 1984 | 16.0 | 9 | 1 |
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 16.0 in July 1984, No. 297 of 1138 months since 1932; 9 days reached G1 or higher.